Windows Update lakkasi toimimasta

Tämmösen viestin löysin samaan ongelmaan liittyen.

http://www.ms-os.com/showthread.php?t=178378


Problem solved! The problem was caused by Administrators not being able to
modify certain files and objects, due to a change in user rights assignment.

How I fixed it:

1. In Control Panel, go to Administrative Tools
2. Open Local Secutity Settings
3. Select Local Policies, then User Rights Assignment
4. At the bottom of the list is an item called "Take ownership of files or
other objects." Ensure that this task can be performed by "Administrators."

So how did this problem occur? (in my case)
Some time ago, I discovered a loophole in Windows' file security options. I
noticed that although it is possible to make folders and files inaccessable
to other users, this can be easily countermanded by the fact that any
Administrator can take ownership of another user's files. Once an
administrator takes ownership of a file or folder, they can redefine its
security options.
In an attempt to prevent such a privacy breach by other administrators on my
computer, I removed Adminsistrators from the list of persons able to "Take
ownership of files or other objects." This inadvertantly prevented me from
updating Windows.