• 29Sep

    Greetinngs,

    Check out its feature on how it works.

    –> There are several ways that SpamAssassin makes up its mind about a
    message:
    –> The message headers can be checked for consistency and adherence to
    Internet standards (e.g., is the date formatted properly?).
    –> The headers and body can be checked for phrases or message elements
    commonly found in spam (e.g., “MAKE MONEY FAST” or instructions on how to be
    removed from future mailings)-in several languages.
    –> The headers and body can be looked up in several online databases that
    track message checksums of verified spam messages.
    –> The sending system’s IP address can be looked up in several online lists
    of sites that have been used by spammers or are otherwise suspicious.
    –> Specific addresses, hosts, or domains can be blacklisted or whitelisted.
    A whitelist can be automatically constructed based on the sender’s past
    history of messages.
    –> SpamAssassin can be trained to recognize the types of spam that you
    receive by learning from a set of messages that you consider spam and a set
    that you consider non-spam. (SpamAssassin and the spam-filtering community
    often refer to non-spam messages as ham. )
    –> The sending system’s IP address can be compared to the sender’s domain
    name using the Sender Policy Framework (SPF) protocol (http://spf.pobox.com)
    to determine if that system is permitted to send messages from users at that
    domain. This feature requires SpamAssassin 3.0.
    –> SpamAssassin can privilege senders who are willing to expend some extra
    computational power in the form of Hashcash.
    Spammers cannot do these computations and still send out huge amounts of
    mail rapidly. This feature requires SpamAssassin 3.0.

    Most of SpamAssassin’s behavior is controlled through a systemwide
    configuration file and a set of per-user configuration files. The per-user
    configuration can also be stored in an SQL database.

    How to Configure it ? : -
    ——————-

    You can easily customize how SpamAssassin tags and identifies spam by
    creating a spamassassin/user_prefs file. You can customize the number of
    “spam points” required to identify a message as spam, create new rules, and
    re-weight existing rules. Here is a sample user_prefs file. It raises the
    threshold for identifying spam from 5 to 6, disables including spam warnings
    in the subject and body, reweights a known rule, and adds several blacklist,
    whitelist, and header rules.

    Listing 1. A typical user_prefs configuration file

    ================================================================

    #How many hits before a mail is considered spam?
    required_hits 6

    #Don’t mangle the messages so badly
    rewrite_subject 0
    use_terse_report 1

    #whitelist and blacklist
    whitelist_from *@www.zzzzzz.com
    blacklist_from annoying-person@xyz.com

    #reweight an existing rule
    score BASE64_ENC_TEXT 3

    #add some new rules
    header KNOWN_LIST List-Id =~ /a-mailing-list-i-like/
    score KNOWN_LIST -3

    body EVITE /This invitation was sent to you by .* using Evite/
    describe EVITE Looks like an eVite
    score EVITE -3

    ================================================================

    Enjoy..

  • 28Sep

    Greetings folks,

    Here are some of the the shortcuts for the windows application that you can run from start >> run

    Accessibility Controls
    access.cpl

    Add Hardware Wizard
    hdwwiz.cpl

    Add/Remove Programs
    appwiz.cpl

    Administrative Tools
    control admintools

    Automatic Updates
    wuaucpl.cpl

    Bluetooth Transfer Wizard
    fsquirt

    Calculator
    calc

    Certificate Manager
    certmgr.msc

    Character Map
    charmap

    Check Disk Utility
    chkdsk

    Clipboard Viewer
    clipbrd

    Command Prompt
    cmd

    Component Services
    dcomcnfg

    Computer Management
    compmgmt.msc

    Date and Time Properties
    timedate.cpl

    DDE Shares
    ddeshare

    Device Manager
    devmgmt.msc

    Direct X Control Panel (If Installed)*
    directx.cpl

    Direct X Troubleshooter
    dxdiag

    Disk Cleanup Utility
    cleanmgr

    Disk Defragment
    dfrg.msc

    Disk Management
    diskmgmt.msc

    Disk Partition Manager
    diskpart

    Display Properties
    control desktop

    Display Properties
    desk.cpl

    Display Properties (w/Appearance Tab Preselected)
    control color

    Dr. Watson System Troubleshooting Utility
    drwtsn32

    Driver Verifier Utility
    verifier

    Event Viewer
    eventvwr.msc

    File Signature Verification Tool
    sigverif

    Findfast
    findfast.cpl

    Folders Properties
    control folders

    Fonts
    control fonts

    Fonts Folder
    fonts

    Free Cell Card Game
    freecell

    Game Controllers
    joy.cpl

    Group Policy Editor (XP Prof)
    gpedit.msc

    Hearts Card Game
    mshearts

    Iexpress Wizard
    iexpress

    Indexing Service
    ciadv.msc

    Internet Properties
    inetcpl.cpl

    IP Configuration (Display Connection Configuration)
    ipconfig /all
    IP Configuration (Display DNS Cache Contents) ipconfig
    /displaydns
    IP Configuration (Delete DNS Cache Contents) ipconfig
    /flushdns
    IP Configuration (Release All Connections) ipconfig
    /release
    IP Configuration (Renew All Connections) ipconfig
    /renew
    IP Configuration (Refreshes DHCP & Re-Registers DNS)
    ipconfig /registerdns
    IP Configuration (Display DHCP Class ID) ipconfig
    /showclassid
    IP Configuration (Modifies DHCP Class ID) ipconfig
    /setclassid
    Java Control Panel (If Installed)
    jpicpl32.cpl

    Java Control Panel (If Installed)
    javaws

    Keyboard Properties
    control keyboard

    Local Security Settings
    secpol.msc

    Local Users and Groups
    lusrmgr.msc

    Logs You Out Of Windows
    logoff

    Microsoft Chat
    winchat

    Minesweeper Game
    winmine

    Mouse Properties
    control mouse

    Mouse Properties
    main.cpl

    Network Connections
    control netconnections

    Network Connections
    ncpa.cpl

    Network Setup Wizard
    netsetup.cpl

    Notepad notepad
    Nview Desktop Manager (If Installed)
    nvtuicpl.cpl

    Object Packager
    packager

    ODBC Data Source Administrator
    odbccp32.cpl

    On Screen Keyboard
    osk

    Opens AC3 Filter (If Installed)
    ac3filter.cpl

    Password Properties
    password.cpl

    Performance Monitor
    perfmon.msc

    Performance Monitor
    perfmon

    Phone and Modem Options
    telephon.cpl

    Power Configuration
    powercfg.cpl

    Printers and Faxes
    control printers

    Printers Folder
    printers

    Private Character Editor
    eudcedit

    Quicktime (If Installed)
    QuickTime.cpl

    Regional Settings
    intl.cpl

    Registry Editor
    regedit

    Registry Editor
    regedit32

    Remote Desktop mstsc
    Removable Storage
    ntmsmgr.msc

    Removable Storage Operator Requests
    ntmsoprq.msc

    Resultant Set of Policy (XP Prof)
    rsop.msc

    Scanners and Cameras
    sticpl.cpl

    Scheduled Tasks
    control schedtasks

    Security Center
    wscui.cpl

    Services
    services.msc

    Shared Folders
    fsmgmt.msc

    Shuts Down Windows
    shutdown

    Sounds and Audio
    mmsys.cpl

    Spider Solitare Card Game
    spider

    SQL Client Configuration
    cliconfg

    System Configuration Editor
    sysedit

    System Configuration Utility
    msconfig

    System File Checker Utility (Scan Immediately) sfc
    /scannow
    System File Checker Utility (Scan Once At Next Boot)
    sfc /scanonce
    System File Checker Utility (Scan On Every Boot) sfc
    /scanboot
    System File Checker Utility (Return to Default
    Setting) sfc /revert
    System File Checker Utility (Purge File Cache) sfc
    /purgecache
    System File Checker Utility (Set Cache Size to size x)
    sfc /cachesize=x

    System Properties
    sysdm.cpl

    Task Manager
    taskmgr

    Telnet Client
    telnet

    User Account Management
    nusrmgr.cpl

    Utility Manager
    utilman

    Windows Firewall
    firewall.cpl

    Windows Magnifiermagnify
    magnify

    Windows Management Infrastructure
    wmimgmt.msc

    Windows System Security Tool
    syskey

    Windows Update Launches
    wupdmgr

    Windows XP Tour Wizard
    tourstart

    Wordpad
    write

    Enjoy..

  • 26Sep

    Hello,

    If you are getting following error while doing any updates on the server

    rpmdb: Program version 4.2 doesn’t match environment version
    error: db4 error(22) from dbenv->open: Invalid argument
    error: cannot open Packages index using db3 - Invalid argument (22)
    error: cannot open Packages database in /var/lib/rpm

    Then to fix that do as per below step.
    1. Check for processes holding the rpm database open (usually in MUTEX/FUTEX states):
    lsof | grep /var/lib/rpm

    If it finds any, kill -9 them all.

    2. Delete any temporary DB files:

    rm -fv /var/lib/rpm/__*

    3. Rebuild your RPM database:

    rpm –rebuilddb -v -v

    If you still have problems, a reboot is probably quickest, then repeat steps 2 and 3 above.

    Hopefully it will fix he problem.

    Enjoy..

  • 26Sep

    Hello,

    The best you can do to speedup ur box in linux is:

    - Use http:driverondemand.sourceforge.net for driver management.. If you dont have a driver installed for a device, it will install the best rated driver automatically, so your less likely to accidently download a crappily designed driver (and you dont need to worry about drivers).

    - If your performance is jerky and inconsistant, you are probably having ACPI problems.. You can disable it by configuring ur lilo.conf or grub.conf, and doing acpi=off, like:
    kernel (hd0,7)/kernel-2.6.7-rc1-mm1 root=/dev/hda8 vga=792 acpi=off

    - if you have a directory with many different files, try to break it up when it gets too large into many directory.. especially if its your home directory… Especially when using GUI tools, that speeds things up dramatically

    - Use the newest 2.6 kernel (the 2.6 series is faster then 2.4 in every aspect).

    - Use reiser4 (its developmental, but is 2X faster then reiserfs, and 4X faster then NTFS.. seemed pretty stable to me).

    - Dont use Xfree 4.2, use Xorg-x11 instead

    - Make sure you are using ur vendors opengl

    - Use ALSA instead of OSS whenever possible, and check on the alsa site if people have specific tweaks etc (for hardware mixing for instance).

    - Use rc-update and disable all the crappy services you aren’t using.
    - If you have a very large amount of ram, you may want to disable ur swap
    (http:kerneltrap.org/node/view/3000).

    - Use a distribution designed for your architecture (many distro’s, like windows are still compiled for 586.. If your running a P4 with hyperthreading, enable support for SMP, etc in the kernel).

    - If you want pure speed, try using a GCC 3.4 devel distro (probably too unstable still though).. GCC 3.4 compiles programs so they run at least 7% faster in a large testcase.. By using good flags, you can expect higher performance gains

    - Try to move off devFS to Udev.. Devfs is obsolete for a good reason, its got lots of locking problems and has many other various bugs.. Everyone should consider moving to Udev if they are on kernel 2.6.

    - To speed up reboots, Linux now has a few programs which allow it to reboot without physically rebooting the machine.. It will just shut down Linux, and when it is about to reboot, instead starts it back up
    (http:www-106.ibm.com/developerworks/linux/library/l-kexec.html?ca=dgr-lnxw01Reboot
    Fast).

    - If you want good speed, and if you use gnome or KDE, ensure you are running the newest versions.. Unlike Windows, the newer the desktop environment, the faster they get.. If you really want to tweak to the max though, blackbox or fluxbox use less resources..

    - Altering the hdparm parameters can also speed things up slightly in some cases.

    - Some Windows managers have settings that allow u to speed them up slightly, just look in their options
    - You may want to use the -ck patchset http:kem.p.lodz.pl/~peter/cko/ for the kernel, Con is a genius at optimisations, and its not uncommon for many of his optimisations to join the mainstream kernel..

    - Add noatime and notail to the drives in ur fstab. noatime turns off the access time
    recording, and notail changes the way things are stored. An example is: “/dev/hda7 /boot reiserfs noauto,noatime,notail”. Be aware notail though wastes a bit of extra space though.

    - Avoid using ext2, ext3, or the windows filesystems (FAT32/NTFS) on any partitions on your computer.. They suck (due to the lack of competition on windows, m*c*s*t isn’t encouraged to improve it to speed it up).. If you dont want to use Reiser4.. then at least use reiserfs or XFS is a bit better provided your harddisk is well designed, however, on badly designed harddisks, the journelling on XFS may not be perfect…

    - If you want to make ur system more usable, check out project utopia (gnome volume manager, HAL, and DBUS).. They are going to be added to the next generation of gnome, and will make a lot more usable. Eikkes volume manager is a good alternative to gnome volume manager (easier to install), found at http:sourceforge.net/projects/ivman.

    - If you want to play windows games, first check if there a native linux port, and use that if there is. Otherwise your best option is winex (www.transgaming.com). That wraps windows calls into linux ones, which slows it down, but for many games, and on good computers you generally dont notice it. Setting the exe file association in your desktop environment will let just click exe’s allowing them to run.

    - If you distro have automount.. sometimes its good to disable it.. Yes it can make life easier, but it can be a pain too sometimes.. If you find theres always a dramatic slowdown when opening nautilus or konquerer, dont use automount.. If you have a good cdrom drive though and are using the newest, you may not have these problems.

    - ESD and ARTS sound servers are not new technologies.. I’ve seen nothing but pain from them.. Try to use ALSA instead of the sound servers wherever possible, and if your feeling really ready, you might want to just try disabling OSS completely in your kernel (not even have OSS emulation). OSS is old, and can only play one steam at a time (cannot do mixing), so when a OSS application plays a sound, it can often screw up every ALSA application which can automatically mix..

    - Use prelink to speed up running applications.. In some cases, prelink has been shown to cut application loading times dramatically. (thanks equilibrium for suggesting this one). http:gentoo.org/main/en/performance.xml has a benchmark showing the impact.. It is considered safe to use these days, and generally works on speeding up everything except wine.

    - Many windows managers support taskbar applets (like a weather applet, network applet, wireless signal strength applet, notification area applet).. Try them out extensively, you’ll be surprised how helpful they can be.. In my case in fact, I deleted the window list off my taskbar completely (I use ALT+TAB always anyway), and just left a windows list applet which I can click to see all the windows, deleted my second taskbar, and set the first one to not expand and to have autohide enabled, saving up alot of my desktop.

    - I dont recommend saving files to your desktop at all.. In linux you have a central storage for each user, so use it for all your files.. it keeps your system alot cleaner, your desktop clear, and you can keep things more organised..

    - In linux, everything from the complete bootup sequence (http:bootsplash.org/), the bootmenu, to nearly every program in linux can be easily skinned (even individual directories can be given a theme in nautilus).. I suggest you take advantage of the skinning, as they can have a massive impact (in fact, its a trivial job to even do stuff like make your linux look identical to windows (by theming or using http:xpde.com/), or any OS you want, so I suggest you do so.. Unlike windows Linux also supports vector based icons, so if you want a Mac OS X like appearance, try to use a svg based themeset).

    - If you want to do theming up to the point of even theming your web browser, use Mozilla firefox (http:mozilla.org/products/firefox/) as your webbrowser instead of mozilla or opera, it has awesome support for plugins and themes (which can be found at http:texturizer.net/firefox/index.html).. In fact, I suggest using firefox in Windows too..
    ————————————————————————————-

    Why aren’t there many centralised tweak pages for Linux like windows?? Because the windows ones are useless, and are VERY often wrong..

    An example of a misconception in windows of tweaking is editing the swap file size yourself instead of letting windows handle it, but the truth of that is that the people who recommended it never bothered to benchmark, and finally when it was, people actually discovered it was slower..And the rest of the tweaks slow down many cases.. MS does do alot of benchmarking to test the tweaks, and the ones they provide are in fact very good (except ones like enabling UDMA). And the tweaks people do come up with at best increase the worst case of the algorithms only minimally (1-2%). The tweaks combined which I gave you, especially if you are only using kernel 2.4 and a non optimised distro (like a i386 one), Give you the potential to increase the speed of ur computer by 200 - 300 % (At the very least changing to reiser4 will double ur harddisk speeds and using the -aa patchset will give 10% speedup potentially). Believe me, the windows tweaks are useless.. thats why there aren’t any equivilent linux ones.. The kernel developers etc try to optimise things as much as possible (with help from distro’s)..

    Use the tweaks I gave you and I guarentee, you’ll speed it up massively (way more
    then all of the windows tweaks together can do).. setting a few tweaks for algorithms
    is never as effective as changing the algorithms itself..

    Anyway, you need help with some of this stuff you can always come on IRC.. Thats the
    great thing about open source, you can tweak it FAR beyond the puny windows tweaks because u can optimise the code..

    The idea is that if you need to adjust any settings of a algorithm in linux, then usually its badly designed anyway, and the kernel developers need to tweak the settings in the kernel source for everyone.

    Enjoy..

  • 24Sep

    Solaris is Sun’s version of unix being developed today . Based on SVR4(System V Release 4) rather than BSD (as SunOS was),Solaris is one of the more widely used flavors of Unix in enterprise networks. Solaris is often used and found on older Sun hardware for hobbyists as well. Solaris source code is now available easily.

    Solaris was developed by Sun Microsystems for the SPARC platform and the most widely used proprietary flavor for web servers .

    SunOS is Sun’s previous iteration of Unix based on BSD. Designed for Sun hardware only, it provides a stable and fairly well supported platform for companies and individuals alike.

    Behavior of Mixed Workloads Consolidated Using Solaris Resource Manager Software (Sun Microsystems, Inc.) Capable of scaling to 64 CPUs, the Sun Enterprise 10000 server running the Solaris Operating Environment provides the ideal foundation for enterprise computing. Solaris Resource Manager software enables system resources to be fairly allocated between various workloads, ensuring predictable service levels for applications.Successful management of multiple applications requires tools, such as Team Quest Performance Software, that can monitor each application’s performance indicators - users, orders per second, hits per second, or Web operations per second.

    With a networking stack optimized for extreme performance and easy implementation, and integration of innovative new communication protocols, Sun can help businesses truly turn their networks into the computers of the future.

    Features for Solaris 10 Operating System Networking >> Extreme Network Performance ..

    Internet growth continues to accelerate, fueled by the explosion of Internet-capable wireless devices such as PDAs, pagers,mobile phones, and automobiles. These new devices will drive the development of new applications, throughput-oriented network systems, new network file services, and secure SSL-encrypted connections. This exponential growth in connectivity, services, and applications will generate demand for increased network performance, innovative communication protocols, and enhanced security. To deliver new content and services, demand for storage and grid computing interconnects extends into the data center.

    Sun provides the full spectrum of technologies needed today to build a virtual enterprise and is on the cutting edge of innovative technologies that will improve Virtualization in the future. Virtualization is another way that Sun provides enterprise-wide solutions, anywhere, anytime.

  • 24Sep

    Hello,

    If you are not able to go to your windows registry then do as per below.
    1.scan ur system using Quick heal antivirus or brontok washer ‘or whichever u feel is the best .However most other antiviruses fail to even recognize this virus
    2.then to unlock ur registry; download ‘freshui’ (google it),will get easily. install it, then under application menu u will find ‘disable regedit’. it will be already chequed. uncheck it.

    Enjoy..

  • 24Sep

    What is Spam Assassin?
    The SpamAssassin system is software for analyzing email messages, determining how likely they are to be spam, and reporting its conclusions. It is a rule-based system that compares different parts of email messages with a large set of rules. Each rule adds or removes points from a message’s spam score. A message with a high enough score is reported to be spam.
    Spam Assassin is a e-mail spam filtering system that sits side by side with account with us to help block, mark or filter out mail you don’t want.

    How do I access Spam Assassin?
    First thing you will want to do is log into your cPanel. From there, under the “Mail” box look at the nine a link that reads “Spam Assassin”. From here it will tell you if Spam Assassin is currently enabled or disabled. Clicking the boxes to enable or disable Spam Assassin is how you can turn it on or off. To configure the Spam Assassin settings click the button that reads: “Configure Spam Assassin (required to rewrite subjects)”

    How do I configure Spam Assassin?
    If you do not know what it is you are looking at, the next screen could be a little confusing. To help you understand here’s a break down of what you should see on the screen and what do do with it:

    required_hits - The number of e-mails received before marked as spam.
    rewrite_subject - The tells Spam Assassin if it should rewrite your subject line or not as you define. (1 is yes and 0 is no)
    subject_tag - What the spam is marked with in the subject line. (usually ***SPAM*** or something else that could be picked up by your own mail filters on your mail client of choice)
    blacklist_from - An e-mail address you definitely want to be marked as spam. (you could also use *@something.com to get every email from that address filtered)
    whitelist_from - An e-mail address you definitely do NOT want to be marked as spam. (you could also use *@something.com to get every email from that address NOT filtered)

    Once you’re done, just hit save and whatever you defined on the earlier page will now be in effect. If you picked to rewrite the subject, then you could now go into your mail client and write a new “rule” that would filter all mail with “***SPAM***” to go into a SPAM folder so that you could check it from time to time making sure you did not get any false positives.

    How do I use the Spam Box?
    You can turn your spam box enable and disable from the same page as Spam Assassin. It’s just that easy! With the recent upgrades to cPanel, the TotalChoice Hosting team has been paying more attention to the users of Spam Assassin.

    In the previous build you would need to use a imap client to get to your spam box.
    Well not anymore. You can create a “new” e-mail account that has precisely the same settings as your e-mail account, but add: “/spam” to the end of the e-mail account user name. This will retrieve only your Spam Box mail.

    In order for this to be useful, you will want to set up your e-mail client to deliver this Spam Box mail to a special folder (perhaps called spam?) automatically.

  • 24Sep

    Greetings,

    If u want to lock a file with a password then you can do so using winrar. Almost all archives support giving password, including WinZip, 7-Zip and it’s not something special with WinRar. Bt WinRar is more comfortable then any other.
    And if you are setting access like this, it is better you set the compression level to “Store”, which will make the compression and decompression faster, since the main aim here is to set a password.

    1) Right click on the file for which u want the password to b put.
    2) Click on “Add to Archive”.
    3) Then go to Advanced tab.
    4)Click on set password…choose your password.
    5) Click ok.
    6) A winrar file with your filename will be created.
    7) Next u may delete the original file, as you have now compressed it with a password.
    8) Anyone trying to open the rar file won’t be able to, unless he knows the password.

    So, no needs of folder lock software.
    Enjoy your privacy guys….

  • 23Sep

    Hello,

    If you are searching for some article on how to find the keyboard shortcut to open perticular folder (e.g. Ctrl + Alt + O should open folder D:/Jayesh/ )

    For example, if you want the D:/Jayesh/ folder to pop up while some other window on your computer is maximized, follow these steps:

    * Select the folder in Windows Explorer.
    * Create a shortcut, and place it on the desktop. (You create a shortcut by opening the folder, pointing to New on the File menu, then clicking Shortcut. Drag the shortcut to your desktop.)
    * Right–click the new shortcut, and then click Properties.
    * In the Properties dialog box, click the Shortcut tab, and in the Shortcut key box, enter a Control key combination or a Control–Shift key combination, (that is, Ctrl+Alt+M or Ctrl+SHIFT+M when M is for music), and then click Ok.

    Anytime you hit the key combination you specified, your folder will open, even when other programs are maximized! This tip can be applied to folders, programs, and text file shortcuts that are placed on the desktop.

    Enjoy..

  • 23Sep

    Hello,

    There are a few guidelines that you can follow to maintain your computer and keep it running smoothly.
    Free Up Disk Space
    By freeing disk space, you can improve the performance of your computer. The Disk Cleanup tool helps you free up space on your hard disk. The utility identifies files that you can safely delete, and then enables you to choose whether you want to delete some or all of the identified files.
    Use Disk Cleanup to:
    • Remove temporary Internet files.
    • Remove downloaded program files (such as Microsoft ActiveX
    controls and Java applets).
    • Empty the Recycle Bin.
    • Remove Windows temporary files.
    • Remove optional Windows components that you don’t use.
    • Remove installed programs that you no longer use.
    Tip: Typically, temporary Internet files take the most amount of space because the browser caches each page you visit for faster access later.
    To use Disk Cleanup
    1. Click Start, point to All Programs, point to Accessories, point to System Tools, and then click Disk Cleanup. If several drives are available, you might be prompted to specify which drive you want to clean.

    Disk Cleanup calculates the amount of space you will be able to free.
    2. In the Disk Cleanup for dialog box, scroll through the content of the Files to delete list.
    Choose the files that you want to delete.
    3. Clear the check boxes for files that you don’t want to delete, and then click OK.
    4. When prompted to confirm that you want to delete the specified files, click Yes. After a few minutes, the process completes and the Disk Cleanup dialog box closes, leaving your computer cleaner and performing better.
    Speed Up Access to Data
    Disk fragmentation slows the overall performance of your system. When files are fragmented, the computer must search the hard disk when the file is opened to piece it back together. The response time can be significantly longer. Disk Defragmenter is a Windows utility that consolidates fragmented files and folders on your computer’s hard disk so that each occupies a single space on the disk. With your files stored neatly end-to-end, without fragmentation, reading and writing to the disk speeds up.
    When to Run Disk Defragmenter
    In addition to running Disk Defragmenter at regular intervals, optimally monthly, certain events warrant running the utility outside of the monthly rule of thumb. You should run Disk Defragmenter under the following circumstances:

    • You add a large number of files.
    • Your free disk space nears 15 percent.
    • You install new programs or a new version of Windows.
    To use Disk Defragmenter:
    1. Click Start, point to All Programs, point to Accessories, point to System Tools, and then click Disk Defragmenter.

    Click Analyze to start the Disk Defragmenter.
    2. In the Disk Defragmenter dialog box, click the drives that you want to defragment, and then click the Analyze button.After the disk is analyzed, a dialog box appears, letting you know whether you should defragment the analyzed drives.
    Tip: You should analyze a volume before defragmenting it to get an estimate of how long the defragmentation process will take.
    3. To defragment the selected drive or drives, click the Defragment button.
    After the defragmentation is complete, Disk Defragmenter displays the results.
    4. To display detailed information about the defragmented disk or partition, click View Report.
    5. To close the View Report dialog box, click Close.
    6. To close the Disk Defragmenter utility, click the Close button on the title bar of the window.
    Detect and Repair Disk Errors
    In addition to running Disk Cleanup and Disk Defragmenter to optimize the performance of your computer, you can check the integrity of the files stored on your hard disk by running the Error Checking utility. As you use your hard drive, it can develop bad sectors. Bad sectors slow down hard disk performance and sometimes make data writing (such
    as file saving) difficult, or even impossible. The Error Checking utility scans the hard drive for bad sectors, and scans for file system errors to see whether certain files or folders are misplaced.
    If you use your computer daily, you should try to run this utility weekly to help prevent data loss.

    To run the Error Checking utility:
    Important: Be sure to close all files before running the Error-Checking utility.
    1. Click Start, and then click My Computer.
    2. In the My Computer window, right-click the hard disk you want
    to search for bad sectors, and then click Properties.
    3. In the Properties dialog box, click the Tools tab.
    4. Click the Check Now button.
    5. In the Check Disk dialog box, select the Scan for and attempt
    recovery of bad sectors check box, and then click Start.

    In most circumstances, select Scan for and attempt recovery of bad
    sectors.
    6. If bad sectors are found, choose to fix them.
    Tip: Only select the Automatically fix file system errors check box if you think that your disk contains bad sectors.Protect Your Computer Against Spyware. Spyware collects personal information without letting you know and without asking for permission. The information that spyware collects ranges from a list of Web sites that you visit to usernames and passwords. In addition to privacy concerns, spyware can hamper your
    computer’s performance.
    Cleaning out the folder c:\windows\prefetch
    A little known tweak that can help you gain some performance on your XP Professional
    related systems is to periodically empty the prefetch folder As you can see, just like the TEMP directory on your system, the Prefetch folder can fill up with lots of unused entries and take up needed space. The folder space isn’t really what you are solely worried about,
    it’s all this ‘preloaded in memory’ stuff that you are trying to avoid. Memory is priceless… it’s what makes your system ’seem’ fast. In reality, you load everything from your hard disk… the more memory your system has, the more the operating system will attempt to load and keep loaded in memory.
    You always… always want to keep this area as free and clear as possible because when it fills up – it immediately impacts the system. Paging from disk to memory and back again taxes system resources and slows down your system.
    As well, running out of hard disk space simultaneously puts a strain on your system’s page file, which needs all available free hard disk space to accommodate ‘virtual memory’. In sum, you can improve system performance by deleting files from this folder not only to keep it out of memory but to also keep it off your hard disk. This is not space that will be gained back unless you are using fewer programs now then you were at another time. An example may be if you previously used many Graphic Art tools and now you aren’t. Since these tools and their environments are so large, removing the prefetch files for these tools may claim a lot in system resources back for you.
    When cleaning out your folder, you have two choices: Selective or All You can be selective or you can mass delete everything. Ctrl + A and then Del. Gone. No problems doing it that way, again – you can regenerate what you need upon reboot and reload.
    You can also be very selective, although the first method is the easiest, quickest and most effective way of doing it. Remember - to delete all the files, simply select them all in Explorer and select the delete key on your keyboard.

    Reboot, re-launch your programs and you are back in business. Programs no longer used often will remain dormant until used again.

    You shouldn’t delete these files often because then your system is
    constantly taxed in creating file
    and then you deleting them. This of course will put a strain on your
    hard disk and leave you needing
    another defrag. Use this tweak sparingly, remembering it when you do
    spring cleaning.
    You can tie this into a routine when you ‘delete’ unused programs, go
    and clear out the prefetch folder…
    cleaning out any other temp related folders and then a scandisk and
    defrag.
    If you spend a few bucks and get a memory upgrade, your system
    will ‘appear’ much quicker.
    As well, you will reclaim some serious hard disk space – and clear
    out memory as well.
    Heck, you may not even need that new stick of memory after you clean
    out your system.
    So, is there anyway to modify prefetch? Yes there is.

    Changing Prefetch settings

    To change settings for your Prefetch folder,
    you may need to take a trip into the system’s Registry.
    You can do this with Regedit.

    Start => Run => type Regedit => Enter

    Now that you are in the Registry, you can change the way that
    Prefetch behavesby making a change in the registry. This is helpful
    when you want to alter Prefetch or disable Prefetch completely.
    Low resource (memory, hard disk space, etc) systems may need
    this functionality disabled to get the system to run more
    efficiently.

    When the Registry Editor Dialog box opens, navigate to this value:

    HKEY_LOCAL_MACHINE\

    SYSTEM\CurrentControlSet\Control\Session
    Manager\Memory Management\PrefetchParameters

    In the right side pane, look for the key named EnablePrefetcher. The
    value of this key represents how Prefetch will operate.

    Values you can choose from include:

    0: Disable

    1: Application Launch Prefetch

    2: Boot Prefetch

    3: Prefetch everything

    Simply type the number in that you want (keep all other settings the
    same) and click OK.
    Rebooting the system will give you the new Prefetch setting.

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