regwinupd.bat contents:
net stop wuauserv
rmdir %windir%\softwaredistribution /s /q
rmdir %windir%\system32\softwaredistribution /s /q
regsvr32 /s wuaueng.dll
regsvr32 /s wuaueng1.dll
regsvr32 /s atl.dll
regsvr32 /s wups.dll
regsvr32 /s wups2.dll
regsvr32 /s wuweb.dll
regsvr32 /s wucltui.dll
net start wuauserv
pause