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Windows 10 Technical Preview Build 9926 Troubleshooting: Calculator Not Opening

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After an upgrade from Preview Build 9879 to 9926 some users have experienced that the calculator app is not opening. The App troubleshooter designed for Windows 8.1 won’t work in case of Windows 10 CTP Preview Build 9926, as that is not designed for this Windows 10 CTP.

So to fix this issue the users need to execute the following PowerShell command:

Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}