Windows update always says that there are no new updates (for months now - obviously it's not true). When I try running manually an update file, it almost always gets stuck on "Searching for updates on this computer".
Also, usually when I run a program (such as task manager), I succeed only on second try. First time results in: "the stub received bad data".
I tried all these in different combinations with very limited success:
DISM.exe /Online /Cleanup-image /Restorehealth
sfc /scannow
del C:\ProgramData\Microsoft\Network\Downloader\*.*
regsvr32 <lots of dlls>
stopping and restarting these: wuauserv , bits , cryptsvc
chkdsk c:
Windows update troubleshooter
Microsoft FixIt
Any ideas how I could fix my windows update?