A very big doubts on NET. Framework 3.5

Similar Questions

• NET Framework

  Anyone with information can explain to me what is all about Net Framework because I can't install some programs like my hp15-d000sia notebook pc suite always tells me to install net framework.
  Please tell me about.

  Hello

  Thanks for posting in the Forum from HP Support.

  Basically, it's the Microsoft component that must be installed/running, aka these programs are created so that they require this component (for some programs). Not a big deal

  Detailed information can be found here:

  http://en.Wikipedia.org/wiki/.NET_Framework

  http://msdn.Microsoft.com/en-us/library/zw4w595w (v = vs. 71) .aspx

  If you have these questions - this means that you are a user with the program enough to this component.

  For users of the computer - it's free and easy to install.

  According to the needs of your programs and your operating system - download the appropriate version of the .NET FrameWork (3, 4, 4.5, etc...) and install it.

  

  If it please let me know if something is not clear and do not hesitate to ask for assistance if you have problems.

  If you want to say thank you! and testify advice, click on the white LAURELS go up (to the left). If your problem has been resolved - click on the appropriate button and accept the post as a solution. If you want to provide more advice and words, send me a private message *.

• Windows 7 & Net Framework 2.0

  I'm trying to uninstall Net Framework 2.0 according to instructions from a previous post that is listed below.  A software package that I try to install needs using this and this message relates.

  When I try to find it for uninstall (#2) fashion, I can't locate.

  Please help, thanks!

  HiSnohomish,

  Thank you for visiting Forums answers to Microsoft Windows.

  I have some steps that may help you.

  1. download and install Windows Installer CleanUp.

  2. uninstall the .net Framework 2.0.

  3. install the .NET Framework 2.0 thestandalone package and check if it works very well.

  Here is the download link:

  Microsoft .NET Framework Version 2.0 Redistributable Package (x 86)

  http://www.Microsoft.com/downloads/details.aspx?FamilyId=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=en

  Download the Windows Installer Cleanup utility

  http://support.Microsoft.com/default.aspx/kb/290301

  When you try to install an update for .NET Framework 1.0, 1.1, 2.0, 3.0 or 3.5, you may receive Windows Update '0 x 643' error code or error code Windows install "1603".

  http://support.Microsoft.com/kb/923100

   

  Concerning
  Joel S
  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think help.

  First run the difficulty in this article & see if the update will install after doing:

  How to fix MSI software update registration corruption issues
  http://support.Microsoft.com/kb/971187

  If no joy, see...

  When installing updates using Windows update or Microsoft Update you may receive error 80070643 0 x or 0 x 643 (feel free to ignore error numbers)
  http://support.Microsoft.com/kb/976982

  Then proceed with the following text:

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

  Step #1 => foremost, note what version of .NET Framework is installed:

  How to determine what version of the .NET Framework is installed and determine whether the service packs have been applied
      http://support.Microsoft.com/kb/318785

  Step #2-online now see resolution method 2 in this related KB article: http://support.microsoft.com/kb/923100

  After the the .NET Framework Cleanup tool (not the Windows Installer Cleanup utility!), reinstall all the versions of the .NET Framework (but the ones you noted in #1 above) manually by using the download links on the page, and then run Windows Update manually to install security updates for same.

  NB: If you remove the .NET Framework 3.5 (SP1) by using the tool, reinstall .NET Framework 3.5 will also install .net Framework 2.0 SP2 and 3.0 SP2. Then, Windows Update will offer .NET Framework 3.5 SP1.

  IMPORTANT! =>, If you remove the .NET Framework 3.5 (SP1), reinstall your version of .NET Framework in the following order:

  1. the .net framework 3.5, then...
  2 .net framework 1.1, then...
  3 .net framework 1.1 SP1

  NB: KB923100 makes reference to this page: http://blogs.msdn.com/astebner/archive/2006/05/30/611355.aspx.  Please read ALL as well as the related http://blogs.msdn.com/astebner/pages/8904493.aspx before using the .NET Framework cleanup tool.

  Step #3 => Check-in at Windows Update and install the critical updates of security offered.

  ~ Robear Dyer (PA Bear) ~ MS MVP (that is to say, mail, security, Windows & Update Services) since 2002 ~ WARNING: MS MVPs represent or work for Microsoft

• Windows family vista premium 64-bit fails to install net framework 3.5 sp1 error code 1603

  I tried several times to install this update for net framework and have had no success at all. I searched for an answer and also failed with that as well. I thought that I have that would give a shot. It's probably something very simple, but you know how it goes with computers. I'll paste the log of the try to install net framework 3.5 sp1 below:

  [03/18/09, 02:06:23] Microsoft .NET Framework 3.5 (x 64) 'package': [2] error: Installation for the Microsoft .NET Framework 3.5 component failure (x 64) 'package '. MSI, returned the 1603 error code
  [03/18/09, 02:06:26] WapUI: DepCheck [2] indicates Microsoft .NET Framework 3.5 'package' (x 64) is not installed.
  [03/18/09, 02:21:03] Microsoft .NET Framework 3.5 (x 64) 'package': [2] error: Installation for the Microsoft .NET Framework 3.5 component failure (x 64) 'package '. MSI, returned the 1603 error code
  [03/18/09, 02:21:06] WapUI: DepCheck [2] indicates Microsoft .NET Framework 3.5 'package' (x 64) is not installed.
  [03/18/09, 16:30:20] Microsoft .NET Framework 3.5 (x 64) 'package': [2] error: Installation for the Microsoft .NET Framework 3.5 component failure (x 64) 'package '. MSI, returned the 1603 error code
  [03/18/09, 16:30:23] WapUI: DepCheck [2] indicates Microsoft .NET Framework 3.5 'package' (x 64) is not installed.
  [19/03/09, 13: 32:50] Microsoft .NET Framework 3.5 (x 64) 'package': [2] error: Installation for the Microsoft .NET Framework 3.5 component failure (x 64) 'package '. MSI, returned the 1603 error code
  [19/03/09, 13: 32:56] WapUI: DepCheck [2] indicates Microsoft .NET Framework 3.5 'package' (x 64) is not installed.
  [19/03/09, 14:32:11] Microsoft .NET Framework 3.5 (x 64) 'package': [2] error: Installation for the Microsoft .NET Framework 3.5 component failure (x 64) 'package '. MSI, returned the 1603 error code
  [19/03/09, 14: 32:14] WapUI: DepCheck [2] indicates Microsoft .NET Framework 3.5 'package' (x 64) is not installed.

  That's what the Setup log gives me after that windows is unable to install net framework 3.5 sp1. I sure would appreciate it if someone could help me solve this problem. I just bought this pc about 2 months ago and it's the first question that I lived with her. Thank you

  To successfully install the update, uninstall all versions of the .NET Framework on the computer, and then reinstall all the versions of the .NET Framework on the computer. You may need to work through more than one of the following methods.

  Method 1: Manually remove and reinstall .NET Framework

  To remove and reinstall .NET Framework manually, follow these steps:

  1. remove the .NET Framework.

  a. Click Start and then click Control Panel.

  b. double-click Add or remove programs.

  c. Note each version of the .NET Framework is already installed on the computer. Then, uninstall all versions of the .NET Framework.

  d. When you are prompted, restart the computer.

  2. use the Windows Installer CleanUp utility to clean up the State of MSI database for all versions of the .NET Framework.

  .      Download the Windows Installer CleanUp utility. The following file is available for download from the Microsoft Download Center: http://download.microsoft.com/download/e/9/d/e9d80355-7ab4-45b8-80e8-983a48d5e1bd/msicuu2.exe

  a. install the Windows Installer CleanUp utility as an administrator or a user account that is a member of the local Administrators group.

  b. Click Start, point to all programs and then click Windows Installer Cleanup.

  (c) in the Windows Installer CleanUp utility, remove all Windows Installer for the .NET Framework applications.

  3. restart the computer.

  4. download and reinstall all the versions of the .NET Framework that were previously installed on the computer.
  To download .NET Framework 3.5, visit the following Microsoft Web site:

  http://www.Microsoft.com/downloads/details.aspx?FamilyId=333325FD-AE52-4e35-B531-508D977D32A6&displaylang=en (5. When you are prompted, restart the computer.

  Note When you have reinstalled all the versions of the .NET Framework, you can use Windows Update to check for the updates of the .NET Framework.

  Method 2: Use the .NET Framework automatic cleanup tool

  This tool is not designed as a substitute for the standard uninstall procedure. You should try to perform an uninstall by following the steps in method 1, earlier in this article, before using this cleanup tool.

  The .NET Framework cleanup tool removes the .NET Framework for you. For more information about how to obtain and use this tool, visit the following MSDN Web site:

  http://blogs.msdn.com/astebner/archive/2006/05/30/611355.aspx

  Note that this cleanup tool deletes shared files and the registry keys that are used by several versions of the .NET Framework. To ensure that all versions of the .NET Framework work correctly, if you run the cleanup tool to remove the .NET Framework, you must first remove all installed versions of the .NET Framework using this cleanup tool. Then, you must reinstall all previously installed versions, starting with the version number the lowest.

  Suppose you have the .NET Framework 1.1 and .NET Framework 2.0 installed on your computer, and you plan to use this cleanup tool. In this scenario, you use the cleanup tool to remove the .NET Framework 1.1 first and then use the cleanup tool to remove the .NET Framework 2.0. After you remove the two versions, you reinstall .NET Framework 1.1 and then install the .NET Framework 2.0, in that order.

  The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

• Microsoft. NET Framework 2.0 Service Pack 1

  I'm on Windows Xp service pack 3 on an old computer with a 60 GB hard drive. I want to delete the above program & other similar to give me more space.

  Is it safe to do so.
  Hope you can help.
  Concerning
  Barry Longhurst

  Agreed.

  Unless we know exactly what applications are installed and what are the versions of MS .NET Frameworks they could use, removing suspicious looking for the 'old' versions of things .NET Frameworks just because they seem to have the numbers of low (such as .NET Framework 1.1 or the .NET Framework 2.0) version can cause things to malfunction.

  If the HARD drive is running out of space, I would look elsewhere for ways to clear the air with a few good maintenance/hygiene, or a disc HARD big or some external drive in order to unload the stuff (pictures, photos, songs, music, etc.).

  A 60 GB HARD drive is actually quite a bit of room.  This system that I use at the moment only has a 40 GB HARD drive and has been running XP fine for almost a decade.

  I have other systems of storage (a septillion bytes) yoctobtyes , but 60 GB should be fine for XP.

• KB829019 NET framework 2.0 fails to install with error 0 x 643

  KB829019 NET framework 2.0 fails to install with error 0 x 643.  Downloaded V4 and repaired, but others say that I don't have NET framework is installed

  When you try to install an update for .NET Framework 1.0, 1.1, 2.0, 3.0 or 3.5, you may receive Windows Update '0 x 643' error code or error code Windows install "1603".
  http://support.Microsoft.com/kb/923100

  When installing updates using Windows update or Microsoft Update you may receive error 80070643 0 x or 0 x 643
  http://support.Microsoft.com/kb/976982

  Some programs require different versions of the .NET Framework must be installed. Programs that can not find .NET Framework are very likely looking for a version that is not installed.

  For more information on the .NET Framework, you can take a look at my ISP note you like:

  http://taurarian.MVPs.org/framework/Net_Framework.htm

• I'm not a developer. I need Net framework

  I'm running out of disk space.  NET Framework has been installed several years ago, and I can't determine if nothing else I use needs this program.

  The different versions of the .NET Framework (and no, they aren't "versions" in the sense that you can necessarily get rid of those earlier) are installed when you install an application that relies on them.  If you uninstall one of the .NET frameworks, some application relies on it will stop working and complain about the next time that you try to use this application.  Of course, you may have uninstalled the application, so you won't know if you have a problem until you actually have a problem.

  In any case, here's my answer canned on a low disk space:

  There are a number of things you can do to- temporarily - free up disk space.  The only real solution, however, is to get a bigger internal hard drive.   You can move the data to an external drive, but if it's the data that you use frequently, slower access times may annoy you.  Therefore, I do not recommend that you move your My Documents folder in its entirety on an external drive, but you can certainly do this by following the related instructions.

  • You can run Disk Cleanup (start > run > cleanmgr > OK)
  • You can reduce the size allocated for the restoration of the system to about 1 GB (right click on desktop > properties > system restore > settings)
  • You can disable hibernation (if you don't use it) (right click on an empty spot on the desktop > properties > screen saver > power > Hibernate)
  • You can disable the indexing of the drive, which will also speed up your computer a bit (http://lifehacker.com/031440/turn-off-indexing-and-speed-up-windows-xp)
  • You can reduce the size of your Internet browser cache (depending on the browser that you use)
  • You can remove most of the $NTUninstallKBxxxxxx files $ following the directions here: http://windowsxp.mvps.org/Hotfix_backup.htm (read the warnings in the gray box first)
  • See also (which repeat some of the above):

  " How to recover disk space on Windows Server 2008 and Windows XP computers? ."

  " Forty ways to free disk space ."

  But none of these answers you will earn really large amounts of space for very long.  The term solution time is a bigger hard drive.

  In the meantime, download and run JDiskReport, that will show you graphically what files take up more space and seem to so indicate what files you can delete or move to an external drive.  If you want to move an application, you will need to uninstall and then reinstall it specifying your external drive as the installation location.  You can not simply move the files.

• I have Net framework 4 and Capicom 2.0, should I have them both?

  I currently have two Net Framework 4.x and Capicom 2.x (root\windows\system32\capicom.dll) when running on a Windows XP Home machine.

  What I keep installed Capicom or framework 4 back issues covering Capicom as Capicom for a later version of windows (Vista, for example) use .NET framework instead of Capicom.

  Thank you very much,
  Mumford68

  Hi Mumford68,

  You may need to use the two .net Framework and CAPICOM 2.0 on Vista system. CAPICOM Version 2 is that the last and the latest version of CAPICOM is officially supported on Windows Vista. Even if .net Framework has replced CAPICOM. You can always keep it on the system in order to run some programmes on CAPICOM.

  For more information, you can consult the following article:

  CAPICOM Reference

  Hope this information is useful.

• NET Framework installation updates will not be

  I get notifications for the updates of Microsoft NET Framework that collide on the update.  I tried several times to install the SP1 without success.  I have version 1.1 is installed.  Do I really need these updates at all?  Everything seems to work fine as it is.

  Vista Home Premium 32-bit
  4 gig RAM
  250 gig HD
  Sony Vaio

  Sohail salvation!

  Thank you very much for the help.  It worked!  I tried method 1, but did not find the Windows Installer CleanUp utility .NET Framework files or programs to uninstall.  SO, I went to method 2.  I downloaded the the .NET Framework automatic cleanup tool and he found files for uninstall.  Then I rebooted and used your link and downloaded .NET Framework 1.1.
  I then download and install .NET Framework 2.0, which I had originally, but during the installation, I got a message telling me that it was already installed on my PC.  (?)   OK, who am I to argue?  Then, I downloaded and installed .NET Framework 3.5.  This installed as it should.

  After that, I went to Windows update and have already told him to search for updates.  Well, he finds the service pack 1 for .NET Framework 1.1 AND there for .NET Framework 3.5 SP1.  It's where he always bombed.  With your help, they both downloaded and installed as they should.  Thank you!

  I was surprised by Brent saying 'if it ain't broke, don't fix it' so to speak.  These updates must be installed initially.
  So, the problem is solved thanks to your help.

  Once again, thank you!
  campyrs
  (Suzanne)

• NET Framework install error 0 x 80070643

  Hello.

  Sorry, I had to open a new question on this problem being the fact that it is many posts related to this error. The reason is the existing posts are pretty old/inactive and I'm not convinced that someone will read the updates.

  I have a problem.

  .NET framework does not complete the installation.

  I have a local Admin account of limited time for setting software.

  I used the installation package for v 4.5.2 and 4.6.1 offline.

  The two ends of the same way. (error 0 x 80070643)

  I tried to run the installation in safe mode, but I was not possible.

  Currently installed is the version 4.5.1.

  Microsoft FixIt did not fix anything.

  Given zero has not fixed anything.

  Uninstall and reinstall the .net Framework is not a solution. (the machine is corporate)

  Windows Update does not work because I'm not admin and the LocalAdmin account does not allow access to the network.

  It is the newspaper of html.

  OS = 6.1.7601, SP = 1.0 version, platform 2, Service Pack 1
  Description of the OS = Win7 - x 64 Enterprise Edition Service Pack 1

  MSI = 5.0.7601.23342
  Windows = amd64_windowsfoundation_31bf3856ad364e35_6.1.7601.17514_none_615fdfe2a739474c.manifest version
  Windows servicing = 6.1.7601.18766

  CommandLine = C:\e32f9f568e08a46be7c28e9a\\Setup.exe x 86/x 64 /redist
  Zone = E. Europe Daylight Time
  Initial LCID = 1033

  The simultaneous use of download and install mechanism

  Operation: installation

  Package Name = installation of the Microsoft .NET Framework 4.6.1
  Package Version = 4.6.01055

  User experience data collection policy: disabled

  Number of applicable items: 10

  Exe (C:\e32f9f568e08a46be7c28e9a\SetupUtility.exe) succeeded.
  Exe log file: dd_SetupUtility.txt

  ServiceControl successful operation!

  ServiceControl successful operation!

  ServiceControl successful operation!

  ServiceControl successful operation!

  Exe (C:\e32f9f568e08a46be7c28e9a\SetupUtility.exe) succeeded.
  Exe log file: dd_SetupUtility.txt

  Failed the Installation MSI (C:\e32f9f568e08a46be7c28e9a\netfx_Full_x64.msi). MSI log: Microsoft .NET Framework 4.6.1 Setup_20160517_123138684 - MSI_netfx_Full_x64.msi.txt

  End result: the Installation failed with error code: (0 x 80070643), "Fatal error during installation." (Time: 0: 00:01:42).

  Txt setup log is very large. (It may be compressed zip to ~ 800kb)

  How can I join it?

  As a hint... Here is a fragment of newspaper txt:

  17/05/16 12:32:10 DDSet_Entry: ReserveNativeImageCost started
  17/05/16 12:32:10 DDSet_Status: component: mscorlib_dll_x86
  17/05/16 12:32:10 DDSet_Status: Dimensions: 5361824
  MSI (s) (78:C8) [12:32:10:880]: Note: 1: 2: 3: 4 2259:
  17/05/16 12:32:10 DDSet_Status: reservation of space by 16085472 in %windir%\System32
  17/05/16 12:32:10 DDSet_Warning: MsiViewExecute failed
  17/05/16 12:32:10 DDSet_Warning: could not disk space for mscorlib_dll_x86 reserve

  There are 287 warnings of this kind in the newspaper.

  Any idea?

  Try the Microsoft .NET Framework repair tool
  http://www.Microsoft.com/en-GB/download/details.aspx?ID=30135
  http://blogs.msdn.com/b/astebner/archive/2012/10/12/10359320.aspx

• Net Framework updates...

  Download Net Framework new updated... that takes away the old updates or I have to delete them manually?

  Hi Dan,.

  Thanks for posting your query in Microsoft Community.

  • Are you facing any problem installing these updates?

  The .NET Framework is a technology that supports the creation and execution of the next generation of applications and XML Web services. The .NET Framework is designed to fulfill the following objectives:

  • To provide a coherent oriented object as the object code programming environment is stored and executed locally, executed locally but distributed on the Internet or run remotely.

  • To provide a code-execution environment which minimizes software deployment and versioning conflicts.

  • To provide a code-execution environment that promotes safe execution of code, including code created by an unknown third party or partial trust.

  • To provide a running code environment that eliminates the problems of performance of scripted or interpreted environments.

  • Do the developer experience consistent across very different types of applications, such as Web applications and Windows-based applications.

  • To build all communication on industry standards to ensure that code based on the .NET Framework can integrate with any other code.

  The system automatically updates the previous version of the updates on your PC. All you have to do is to restart the computer if an update is installed so that it can be successfully configured.

  Hope this information is useful. Please feel free to answer in the case where you are facing in the future other problems with Windows.

• try to update MS net framework Asst. is not because he is disabled. Help!

  the wizard of Microsoft Net Framework needs an update, but it is disabled with this version of Firefox. How updated?

  Not a problem of Firefox support.

  You can download a newer version of Microsoft .NET Framework from here: https://www.microsoft.com/en-us/download/details.aspx?id=40773
  or here:
  https://msdn.Microsoft.com/en-us/vstudio/aa496123.aspx

  With respect to the update of the .NET Framework, see Microsoft support for help with that.

• Norton deleted and Microsoft .NET Framework - why security search bar? When these extensions available for Firefox 4? How can I go back to the previous version?

  After having downloaded and installed the new Firefox 4.0, I learned 2 extensions could not be installed. A notice would monitor the compatibility and availability and would notify me when those extensions are available. So who's going to happen, I prefer to use Norton Security when searching on the web and don't know what did Microsoft NET Framework, so don't know how important it is.

  Symantec needs update their Firefox Add-ons to make them compatible with Firefox 4. They indicated that, for Norton 360, they plan to release a update of Norton 360 to support Firefox 4 in early may - http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web & docurl = 20100720113635EN & ln = en_US

  I don't know about the time scale for the updates for other Norton products. Waiting for the update by Symantec, if you want to use Norton modules, you will need to downgrade to Firefox 3.6.

  Downgrade to Firefox 3.6 first of all uninstall Firefox 4, but do not select the option 'remove my Firefox personal data '. If you select this option, it will delete your bookmarks, passwords and other user data.

  Then you can install the latest version of Firefox 3.6 available to http://www.mozilla.com/en-US/firefox/all-older.html - it will automatically use your favorite courses, passwords etc.

  I recommend, to avoid possible problems with decommissioning, accessing your profile folder and delete the following files if they exist - extensions.cache, extensions.rdf, extensions.ini, extensions.sqlite and localstore.rdf. Delete these files will force Firefox to rebuild the list of installed extensions, check their compatibility and cancel the toolbar customizations.

  For more information on how to find your profile folder, see https://support.mozilla.com/kb/Profiles

  Module additional Microsoft NET framework also supports ClickOnce, I never found any need.

• Satellite A200: No audio after update SP1 and NET Framework

  Hello

  After my laptop Satellite A200 update Microsoft .NET Framework 3.5 Service Pack 1 and the .NET Framework 3.5 Family Update (KB951847) x 86 and
  Internet Explorer 8 for Windows Vista, the speakers and the headphones stopped working.

  When you go to the speaker icon in the taskbar, it says "No. AUDIO OUTPUT DEVICE INSTALLED.

  I'm confused.

  Can someone help pleeeeeeeease.

  Thank you

  Hello

  I think you should just go to the Device Manager and should remove (uninstall) the audio driver.
  Then go to the Toshiba European page, choose your model of laptop, download the audio driver and unzip the package.
  Reboot the laptop.

  After the Win operating system has started, the new device (sound card) should be recognized and the operating system asks for the driver.
  Now, you must point to the driver package that you have downloaded from the page and must be reinstalled the driver.

  Check it out!

• Windows XP does not level net framework 3.5 service pack 1 or service pack 2. Error code 80070673. Also, don't look for new updates - error code 80070490.

  My windows xp tried to upgrade with the 3.5 framework - net framework 3.5 SP1 update family (KB951847) x 86 since 07/08/09.  History shows that he has failed every time.  He also tried to install service pack 2 (KB948465) since 07/08/09 and has failed each attempt.  When I try to check new updates, it says "windows has not can find new updates" with an error code 80070490.  When I try to upgrade with the framework 3.5 service pack 1, it says "some updates were not installed" with an error code of 80070673.  History shows that all other updates have been installed successfully.  Please let me know what I need to do to fix this problem.

  Read the article (I posted the URL): http://support.microsoft.com/kb/958044

  You will need to fix the OS before trying to fix the rest of your problems. If the OS is unstable, then nothing else will matter. Make sure you have backups up-to-date of all your personal stuff and know where the product keys etc in case you should reinstall. That your OS is stable/fixed you can follow instructions from PA Bear re updates of the framework.
  
  Windows 2000, Windows XP and Windows Server 2003 to resolve this issue, use the System File Checker to check that the correct versions of the file system are present. To do this, follow these steps:

  1. Click Startand then click run.
  2. Copy and then paste (or type) the following command in the Open box, and then press ENTER:
     cmd
  3. At the command prompt, type sfc/scannow, and then press ENTER.

     Note If you are prompted for your Windows XP CD, insert the CD into the CD drive.

  4. Once completed the System File Checker, try installing updates again.

  For more information about the System File Checker, click on the number below to view the article in the Microsoft Knowledge Base:

  310747 (http://support.microsoft.com/kb/310747/) Description of Windows XP and Windows Server 2003 System File Checker (Sfc.exe)

  If the System File Checker does not resolve the problem, you must perform a repair of Windows XP installation.

  For more information about how to perform a repair of Windows XP installation, click the number below to view the article in the Microsoft Knowledge Base:

  315341 (http://support.microsoft.com/kb/315341/) how to perform an upgrade on the spot (reinstallation) of Windows XP

  Once installation is complete repair, try again to install updates.

  Note Run a repair installation will not damage files and applications that are currently installed on your computer. TaurArian [MVP] 2005-2010 - Update Services