Symptoms:
Windows updates pops up with the warning that Microsoft Core Services 4.0 Service Pack 2 updates repeatedly have to be installed. After a successful installation the pop-up windows starts again in a couple of minutes. Repetitive installation or new start does not solve the problem.
Cause:
The problem is caused by a false installation information in the msiexec-registry
Resolution:
Under command prompt run the following commands
net stop wuauserv
MsiExec.exe /uninstall {37477865-A3F1-4772-AD43-AAFC6BCFF99F} /passive
RD /S /Q %windir%\Softwaredistribution
[Del %windir%\system32\msxml4.dll]
net start wuauserv
wuauclt /detectnow
wuauclt /reportnow
Link: