http://superuser.com/questions/533170/how-to-fully-uninstall-a-windows-store-app
I have uninstalled Bing Maps, Travel and a few other Win8 apps from my computer. However, C:\Program Files\WindowsApps still lists them, happily taking up 1.5 GB of space.
Is there a better way to fully uninstall every trace of these apps than to simply delete the files by hand?
Built-in apps are called provisioned apps. They are scheduled to be installed for each new user that registers on a Windows 8 PC, so you can’t uninstall them completely from the Start screen. To do so, you’ve to use Windows PowerShell command remove-AppxProvisionedPackage, like so:
remove-AppxProvisionedPackage -package Microsoft.BingTravel_1.2.0.145_x64__8wekyb3d8bbwe
That would uninstall the Travel app. To remove Bing Map app, the command would be:
remove-AppxProvisionedPackage -package Microsoft.BingMaps_1.2.0.136_x86__8wekyb3d8bbwe
Microsoft.BingMaps_1.2.0.136_x86__8wekyb3d8bbwe is the app package name, which basically is the folder that you find in C:\Program Files\WindowsApps.
To uninstall apps installed from the Windows Store, the command is Remove-AppxPackage. It’s syntax is as below:
Remove-AppxPackage PackageFullName
