Â 1. The app store will randomly break from a Windows update for no apparent reason and suddenly when you try to buy apps, it'll start downloading and then you'll get "Unknown error 0x8004008 has occurred" with a "more info" hyperlink that leads to a 404 page on Microsoft's site. Running a repair or system restore will not fix it, and system file checker will tell you nothing is wrong. You'll then reinstall Windows.
Â 2. Once you reinstall Windows, you'll be able to download apps from the Windows App Store, but once the app is downloaded, it will launch the third party software vendor's own custom installation program which will stick junk all over your hard disk, trigger UAC prompts, and when you launch the app, another random app on your machine will try to repair itself.
Â 3. When you try and uninstall the app, you won't be able to do it from the app store, you'll have to go to "Programs and Features" and uninstall it from there, where you will get an error saying that the install log could not be found and you're unable to uninstall the app.
Â I dare you to tell me I'm wrong.