Try the following:
Delete
%ProgramFiles%\WindowsApps
.Delete the following registry keys:
HKEY_CLASSES_ROOT\ActivatableClasses\Package HKEY_CLASSES_ROOT\AppX*
Download this and extract to
%WinDir%
. This will replace theWindows Store
files.
If that doesn't work, run sfc /scannow
or as a last resort, Refresh
your PC.