Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I just upgraded my machine with Windows 7 Pro x64, to Windows 8 Pro x64, with the Windows 8 Upgrade Assistant.

Everything went great, but none of the Modern UI Apps open, and they do not show any error messages or warnings, they just close right away I opened them.

I tried to open Skydrive, Windows Store, Photo App,Music App, Bing, Videos , Finances and all the available Modern UI apps on my screen

My screen resolution is 1080p, so it is not a resolution issue, I'm using a Windows account , but i switched to Local account but didn't solved the issue. I ran Windows Update and updated my nVidia video drivers.

I also tried an app called "Metro App Troubleshooter" without luck

share|improve this question

Disabling avast Antivirus!, if you have it installed (or removing it altogether), is in fact a solution to this known issue. Troubleshooted and tested today by me, after my recent upgrade to Windows 8 Professional. Of course, if you are not using avast then look for an alternative solution.

share|improve this answer

Do a system refresh and see if it works

But, first open a command prompt with administrator privileges and type this

sfc /scannow

Get back with the results

share|improve this answer
will this delete all my existing applications? – Joyal Oct 28 '12 at 10:01
Apps downloaded from the store will be there. But desktop softwares won't be kept. See my edited answer please. – pratnala Oct 28 '12 at 10:04
up vote 1 down vote accepted

I was able to solved this issue, the problem was caused by Avast Antivirus, i uninstall it , and everything start to work

thank for the support

share|improve this answer
Oh yes avast. Avast 2013 will supposedly fix this – pratnala Oct 28 '12 at 11:06

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.