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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

3 Answers 3

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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.

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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

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  • will this delete all my existing applications?
    – Joyal
    Oct 28, 2012 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, 2012 at 10:04
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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

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  • Oh yes avast. Avast 2013 will supposedly fix this
    – pratnala
    Oct 28, 2012 at 11:06

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