Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I can't believe I'm going through this again. I recently updated my windows 8.1 with kb2919355 and my PC doesn't boot anymore. I'm getting a black flickering logon screen where it's impossible to login (Same issue in safe mode). This already happened when I've done the 8.1 upgrade from 8. What I had to do was restore a backup I previously made. This is not an option now.

I managed to access the advanced boot menu via the Windows 8.1 installation DVD but I can't seem to do a system restore. When I choose the restore point it seems to do all the process just fine but in the end it gives me error 0x80070057 "An unspecified error occurred during System Restore" Details: System Restore failed to extract the original copy of the directory from the restore point. Source %ProgramFiles%\WindowsApps. Destination: AppxStaging.

I'm guessing there's some permission issue, can I give special permissions to System Restore via cmd?

Refresh/Reset are not viable options, I hope someone can help me because I need to work with this machine but I'm stuck and I'm loosing my mind.

Thanks in advance

share|improve this question
Have you installed the prerequisites? –  eyoung100 May 6 '14 at 13:56
From what I've read from other forums, AppxStaging errors are caused by disabled UAC (User Account Control). You can enable it through regedit, or by searching "UAC" from the start page. –  DominatorX Jul 13 at 1:13

protected by Community Sep 22 '14 at 14:54

Thank you for your interest in this question. Because it has attracted low-quality answers, posting an answer now requires 10 reputation on this site.

Would you like to answer one of these unanswered questions instead?

Browse other questions tagged or ask your own question.