Support for Windows Vista without any service packs installed ended on April 13, 2010. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2). For more information, refer to this Microsoft web page: Support is ending for some versions of Windows (http://windows.microsoft.com/en-us/windows/help/end-support-windows-xp-sp2-windows-vista-without-service-packs)
To reset the Windows Update components automatically, click the Fix it button or...
To reset the Windows Update components automatically, click the Fix it button or link. Click Run in the File Download dialog box, and then follow the steps in the Fix it wizard.
Note this Fix it Solution has two modes Default and Aggressive. You should run the Fix it solution in Default mode and determine if it resolves your problem with Windows Update before running it in Aggressive mode.
Important This section, method, or task contains steps that tell you how to modi...
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756(http://support.microsoft.com/kb/322756/ ) How to back up and restore the registry in Windows
To reset the Windows Update components, follow these steps:
Open a Windows Command Prompt. To open a command prompt, click Start and then click Run. Copy and paste (or type) the following command in the Open box and then press ENTER: cmd
Stop the BITS service and the Windows Update service. To do this, type the following commands at a command prompt. Press ENTER after you type each command.
net stop bits
net stop wuauserv
Delete the qmgr*.dat files. To do this, type the following command at a command prompt, and then press ENTER:
Del "%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr*.dat"
If this is your first attempt at resolving your Windows Update issues by using the steps in this article, go to step 5 without carrying out the steps in step 4. The steps in step 4 should only be performed at this point in the troubleshooting if you cannot resolve your Windows Update issues after following all steps but step 4. The steps in step 4 are also performed by the "Aggressive" mode of the Fix it Solution above:
Rename the following folders to *.BAK:
To do this, type the following commands at a command prompt. Press ENTER after you type each command.
Check whether the Windows Update components are reset. If the Windows Update com...
Check whether the Windows Update components are reset. If the Windows Update components are reset, you are finished with this article. If the Windows Update components are not reset, you can contact support (https://support.microsoft.com/oas/default.aspx?gprid=6527) .