For some reason I have an app that thinks it has new updates, which it does not currently and refuses to do its job. I have to completely uninstall it. Where does windows 8 use as storage for apps/info of apps ?
The MSDN page at MSDN/windows/apps/windows.applicationmodel links to "Package" and "PackageVersion". PackageVersion seems to be what we want to be looking at, but both pages have the following at the bottom:
Googling for Windows.winmd gives me this Wikipedia page (oldid'd for futureproofing), which states
How about you try searching for those files? I don't have a Win8 to experiment on right now.