Windows 10 apps will not start

Just upgraded my Windows 8.1 Pro (Lenovo W540 laptop) to Windows 10, everything went smoothly, all my settings and installed apps preserved and work without a hitch.

The only issue is - Windows's own apps - Calendar, Mail etc. even Windows AppStore - won't launch. When I run them I very briefly see a window flashing and then nothing happens after that.

Any idea what's going on and how to fix it?

EDIT: Seeing bunch of these in Event log: Activation of app Microsoft.WindowsStore_8wekyb3d8bbwe!App failed with error: Access is denied. See the Microsoft-Windows-TWinUI/Operational log for additional information.

Yuriy Galanter

Posted 2015-08-05T17:00:10.153

Reputation: 763

Based on the error you have sever permissions problems. If doing a Refresh which would mean losing your installed applications, I suggest you go back to Windows 8.1, and making sure those permissions problems were not present there also. – Ramhound – 2015-08-05T17:33:47.863

@Ramhound it worked in 8.1 and it worked (for a while in Win10 as well). but you were right that error was a clue, and I found the solution – Yuriy Galanter – 2015-08-05T18:56:08.430

1This has happened to a lot of people. People have been complaining about since Windows 10 launched. I believe this question is a dupe... but your answer is the best and clearest so far. – Keltari – 2015-08-14T21:13:26.623

I could not write an answer here because of reputation issue. However, I ran into the same problem where all windows 10 apps did not open. I tried so many options I found online and none worked for. What worked for me eventually was running this in PowerShell: Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"} from here

– Hawk – 2017-11-28T02:31:33.513

2What?!!! I've searched all day trying to uninstall, reinstall and register Store but not a single webpage said this was the solution. – Daniel Cheung – 2015-12-26T09:38:55.777

3With an obvious note that the "ALL APPLICATION PACKAGES" account name is language specific, this was the solution that worked for me. – Wiktor Zychla – 2016-01-27T21:00:19.000

Also, check registry permissions. See this Microsoft article: https://support.microsoft.com/en-us/kb/2798317

– James T – 2016-03-21T19:58:08.503

Can you help me on the Same issue with Windows 10 ? – N.K – 2017-07-10T08:05:13.813

Windows 10 apps will not start

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