Having installed Windows 8.1 on my Surface Pro, I noticed some of my apps were stuck in installing. And I couldn’t get them uninstalled through the UI.

Here is a big advantage on working for Microsoft, I have access to mailing list who were able to help me get this cleaned up. It help me, hopefully it will help you, No guarantees. If it didn’t work, get back to me on comments and see if I can find ways to unblock you.

  1. Using Powershell, use Get-AppxPackage and find the full name of the package. Basically you need to find the full name, not the small ~12 character one.
  2. Then using this full name, again using powershell run Remove-AppxPackage.

Number of folks had mentioned this helped with MediaMonkey, Netflix, etc….

Good luck.