How to uninstall an app that another user installed?

Question

I keep hitting this problem when I try to debug my Windows 8 apps and there is a copy already installed on another user account:

DEP0700 : Registratio

Answer 1

Though this didn't work for me, it may just work for someone else...

Start powershell as Administrator and run:

Get-AppxPackage -all | Out-GridView -Passthru | Remove-AppXPackage

Then SELECT the right package and OK, hopefully it will remove.