How do I reset Windows Update components?

How do I reset Windows Update components?

 Microsoft KB Article 971058

To reset the Windows Update components, follow these steps:

1. Open a Windows Command Prompt Windows. 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
2. 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
3. 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"
   
   
4. 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 step 4. 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:
   1. Rename the following folders to *.BAK:
      • %systemroot%\SoftwareDistribution\DataStore
      • %systemroot%\SoftwareDistribution\Download
      • %systemroot%\system32\catroot2
      To do this, type the following commands at a command prompt. Press ENTER after you type each command.
      • Ren %systemroot%\SoftwareDistribution\DataStore *.bak
      • Ren %systemroot%\SoftwareDistribution\Download *.bak
      • Ren %systemroot%\system32\catroot2 *.bak
   2. Reset the BITS service and the Windows Update service to the default security descriptor. To do this, type the following commands at a command prompt. Press ENTER after you type each command.
      • sc.exe sdset bits D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
      • sc.exe sdset wuauserv D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
5. Type the following command at a command prompt, and then press ENTER:
   cd /d %windir%\system32
6. Reregister the BITS files and the Windows Update files. To do this, type the following commands at a command prompt. Press ENTER after you type each command.
   • regsvr32.exe atl.dll
   • regsvr32.exe urlmon.dll
   • regsvr32.exe mshtml.dll
   • regsvr32.exe shdocvw.dll
   • regsvr32.exe browseui.dll
   • regsvr32.exe jscript.dll
   • regsvr32.exe vbscript.dll
   • regsvr32.exe scrrun.dll
   • regsvr32.exe msxml.dll
   • regsvr32.exe msxml3.dll
   • regsvr32.exe msxml6.dll
   • regsvr32.exe actxprxy.dll
   • regsvr32.exe softpub.dll
   • regsvr32.exe wintrust.dll
   • regsvr32.exe dssenh.dll
   • regsvr32.exe rsaenh.dll
   • regsvr32.exe gpkcsp.dll
   • regsvr32.exe sccbase.dll
   • regsvr32.exe slbcsp.dll
   • regsvr32.exe cryptdlg.dll
   • regsvr32.exe oleaut32.dll
   • regsvr32.exe ole32.dll
   • regsvr32.exe shell32.dll
   • regsvr32.exe initpki.dll
   • regsvr32.exe wuapi.dll
   • regsvr32.exe wuaueng.dll
   • regsvr32.exe wuaueng1.dll
   • regsvr32.exe wucltui.dll
   • regsvr32.exe wups.dll
   • regsvr32.exe wups2.dll
   • regsvr32.exe wuweb.dll
   • regsvr32.exe qmgr.dll
   • regsvr32.exe qmgrprxy.dll
   • regsvr32.exe wucltux.dll
   • regsvr32.exe muweb.dll
   • regsvr32.exe wuwebv.dll
7. Reset Winsock. To do this, type the following command at a command prompt, and then press ENTER:
   netsh reset winsock
8. If you are running Windows XP or Windows Server 2003, you have to set the proxy settings. To do this, type the following command at a command prompt, and then press ENTER:
   proxycfg.exe -d
9. Restart 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 start bits
   • net start wuauserv
10. If you are running Windows Vista or Windows Server 2008, clear the BITS queue. To do this, type the following command at a command prompt, and then press ENTER:
    bitsadmin.exe /reset /allusers
11. Install the latest Windows Update Agent. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
    949104 How to obtain the latest version of the Windows Update Agent to help manage updates on a computer
12. Restart the computer.