Start with a admin commandline:
net stop wuauserv
rd /s /q %windir%\SoftwareDistribution
del %windir%\WindowsUpdate.log
net start wuauserv
wuauclt /detectnow
wuauclt /reportnow
After 10 minutes you can look in the log for errormessages.
net stop wuauserv
rd /s /q %windir%\SoftwareDistribution
del %windir%\WindowsUpdate.log
net start wuauserv
wuauclt /detectnow
wuauclt /reportnow
After 10 minutes you can look in the log for errormessages.
