Thank you for your reply but that didn't help.

Have you ran a third party agressive cleaning app which deleted some of the files? If so, try loading a previous system image (if available).
You can check the windows log files here:...

You got it wrong. Windef is already diabled I want to enable it.

I can't update these two apps- Store purchase app, paid wifi and cellular. Other apps seem to work well. Can't figure out what's wrong. Help?

Yes, guess now I have to stop using torrent.

Thanks, I'll try it.

NPAV wasn't free I bought it. And everyone is a nerd enough to not trust Windows defender for security.

I assume that you assume me to be using a pirated version of windows because of kmspico, but note that my windows is already activated and clean. For that matter I didn't install kmspico it came with...

Ya I mean trying to some job fixed without getting into trouble:chuckle:

I mentioned that using malwarebytes once ruined my pc, take that risk again?

I was too facing same problem. Do you have antivirus installed? If so, disable it and then try to update. Simple fix, worked for me.:cool:

I recently ran kmspico.exe and couple other unverified programs(of course by mistake) and now my pc's loaded with malware and virus. I reset my pc completely but I still think there are virus files...

Well I too have the same problem, but I didn't even disable it via registry or gpedit. Still it shows that it is disabled by group policy. Any help?