Only had the Surface Pro 2 for 5 days, and today any time I try opening a "metro" app, it crashes immediately after showing the startup logo. I'm guessing it has to do with the fact that I recently changed the owner of C:\Program Files\WindowsApps from TrustedInstaller to the Administrators group. I tried changing it back, but the apps still crash. This ridiculousness, along with a wifi speed issue (can't connect to network with greater than 2 Mbps speed), and a failing windows update have led me to request an exchange from Microsoft. Hoping the wifi issue is just faulty hardware, as exhaustive searching seems to indicate (some people don't have the problem, some do and nothing resolves it). If the new unit fixes that, then I can resist messing with the folder permissions and hopefully avoid this crashing app garbage, and hopefully it'll be worth keeping, because I really want to like this thing.