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I have a Dell XPS 15 which shipped with Windows 7 x64, which I recently upgraded to Windows 8. The process went surprisingly smoothly (given that this was an upgrade, not a complete re-install), and the system generally seems very stable.

However, today I noticed that several of the Windows Store apps don't work: they all behave in the same way, launching but then showing a spinning 'wait' animation indefinitely. This is affecting the standard Microsoft Mail, Store, Weather, News, Travel, Finance, Sport, Games and Music apps.

The Bing app just shows a Bing logo on a coloured background (but no wait animation).

The Calendar, Photos and SkyDrive apps open but then show a white screen.

The Maps and Camera apps work without problems.

The live tiles on the Start screen are updating correctly, for example the Mail app's tile shows a summary of new mail despite the Mail app's problems.

All of these applications were working correctly a few days ago. I'm sure I've used several without problems since the last Windows update occurred on 7th November.

Any suggestions on what might have happened and/or how to fix it would be very welcome. I don't need these Windows Store applications, but the fact that they're not working is irritating me.

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Have you restarted since (as opposed to just putting the computer to sleep?) –  Rowland Shaw Nov 12 '12 at 17:07
    
Yes, I've tried restarting several times. I've also tried disabling my (McAfee) firewall and restarting, just in case that was related. Unfortunately, no change. –  David Miller Nov 12 '12 at 17:27
    
Open the Event Viewer (Search for Event Viewer on the Start Screen, it'll come up in the settings). Take a look at Windows Logs->Application –  Rakib Ansary Nov 13 '12 at 4:17
    
I had a look at the application logs, but couldn't see anything that obviously indicated the source of the problem. –  David Miller Nov 13 '12 at 13:56

2 Answers 2

Some troubleshooting steps which might help you:

  1. If you have Avast installed, remove it. Avast apparently is not letting apps run (as I have seen on numerous forums). Wait for version 2013 (I don't know if it has already released, in that case, install 2013 then). I see you don't have Avast as you have mentioned in the comments. Please proceed to Step 2 then

  2. If you don't have Avast, open the command prompt with elevated permissions (tip: press Windows+X and select Command Prompt (admin). Run this command sfc/scannow

  3. Generally, sfc fixes any system file errors and restarts the system. If they still don't work, you have to do a Refresh. Sadly.

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No, using McAfee not Avast (as you spotted). I could try disabling this, but it was running when the apps were working previously. –  David Miller Nov 13 '12 at 8:49
    
I will try an sfc/scannow. I'm not sure what a system refresh will do on an upgraded system - what would it refresh to? –  David Miller Nov 13 '12 at 8:49
    
When did the apps stop working? –  pratnala Nov 13 '12 at 9:14
    
I did a clean install but I don't know what happened and Metro stopped working. Had to do a refresh –  pratnala Nov 13 '12 at 9:16
    
sfc /scannow didn't help, unfortunately (although it claimed to fix some things). Neither has uninstalling McAfee (seemed worth a try). –  David Miller Nov 13 '12 at 10:15

I appear to have solved my problem (although possibly only temporarily!) using System Restore. After failing to reinstall McAfee (which I uninstalled as a test, which I believe led to a broken Windows scripting environment which broke its own installer - see my notes above) it seemed that nothing less than a System Refresh would be enough. However, a System Restore to a handy restore point from about a week ago has restored McAfee and fixed all of my broken Modern UI apps.

I have since reinstalled the drivers that were rolled back, and everything is still working. If it breaks again, I will give up and refresh (if that works on an updated Windows 7) or reinstall.

It may be unrelated, but at around the time when my Modern UI apps broke I noticed that Windows had automatically installed a Modern UI app for my HP Photosmart 5515, presumably after noticing it on the network. This hasn't reappeared yet (I'm currently connected to a different network).

So, if all else fails it may be worth trying a system restore before a refresh.

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Yes I would agree the source of the problem was because you installed software from HP :-) –  Ramhound Nov 27 '12 at 16:23
    
Frighteningly, Windows 8 installed it all on its own! :-) –  David Miller Nov 28 '12 at 17:20

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