When Windows XP Update Won't

There are a number of things that can break Windows Update in XP, including performing a repair/reinstall. Some folks are also having issues after installing Service Pack 3, or some particular Patch or Update.  For a quick fix, do the following:

Open Notepad and copy/paste the following text:

  • regsvr32 wuapi.dll
  • regsvr32 wuaueng.dll
  • regsvr32 atl.dll
  • regsvr32 wucltui.dll
  • regsvr32 wups.dll
  • regsvr32 wuaueng1.dll
  • regsvr32 wucltui.dll
  • regsvr32 wups.dll
  • regsvr32 wuweb.dll
  • regsvr32 wups2.dll
  • regsvr32 msxml.dll
  • regsvr32 msxml3.dll
  • regsvr32 msxml2.dll
  • regsvr32 qmgr.dll
  • regsvr32 qmgrprxy.dll
  • regsvr32 Softpub.dll
  • regsvr32 Mssip32.dll
  • regsvr32 Initpki.dll
  • end

Save the file to your desktop as UpdatesFix.cmd (you'll have to click the "Save As Type... dropdown and select "All Files" before you click the Save button).


reregister dll's involved in the Windows Updates download and installation processes.