I have a Windows 7 Home Premium 64-Bit installation where Windows Update has stopped working for no apparent reason.
6 new important updates are listed as available. No matter whether I try to install all of them or just a subset, it always goes like so:
- Updates are being downloaded.
- One update after the other is reported as being installed. ("Update x of n is being installed ...")
- After the last update has been "installed", the Windows Update icon turns red and it is stated that none of the updates were installed. (I.e. if I tried to install 6 updates, it says "6 updates failed to install.". An error code of 80071A91 is reported.
When googling for this error code, I found advice to delete files in %windir%\system32\config\txr and %windir%\system32\SMI\Store\Machine. Unfortunately, this didn't help.
What can I do? Any log file I can check?