If you’ve been having problems launching the Windows Store or launching windows metro apps after upgrading from Windows 8 and none of the other troubleshooting suggestions have worked, this probably means the upgrade has caused registry permission issues.
The following registry path indicates a typical registry location associated with a Metro app:
HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData
\WinStore_*examplemetroapp*
What you’ll need to do is check all the “PSR” folders in any sub folders of
HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel
\SystemAppData\WinStore_*exampleapp*\
To see if you’re denied access to any of the PSR folders
If you are go and grant yourself ownership of the PSR folders you’re denied access to
That should sort the Metro app/Windows Store launch issues.
Hopefully you don’t have lot of Metro apps installed otherwise re-granting ownership can become a bit tedious.
If you do have a lot you can of course re-grant yourself ownership of the root folder and enable inheritance so the permission change get’s applied to all folders under the following registry location and to all PSR folders as a result:
HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData
Note: Very important – If you don’t know what the registry is please don’t modify it.