This is a pretty nice and handy feature:
Windows 8: 'Refresh' and 'Reset' your PC
http://www.zdnet.com/blog/hardware/windows-8-refresh-and-reset-your-pc/14780
Refresh/Reset look pretty good. Not liking the screenshots that I have seen of the new BSOD. The frowny face is flippant and isn't exactly what someone wants to see when their computer sh*ts the bed. 'Oops, we broked it!'.
The schizophrenic behavior that you experience going from Metro to Desktop is jarring, and the fact that there are 2 different UIs for IE is annoying. I cannot stand the Metro IE (the fact that I cannot figure out an easy way to bring up the address bar without hitting ctrl+T is the biggest issue). The ultra-large UI elements also kind of annoy me, especially since they are a little blurry.
2 Control Panels, 2 IEs, 2 ways to do a lot of stuff. And a completely non-obvious way to shut off the computer. You need to throw the cursor into the bottom left corner to invoke the 'start menu', which is dumb since that probably won't work very well with someone's finger.
Zune was not included by default, which was odd, and installing it wasn't exactly easy. It needed .NET, but wouldn't offer to download it for me, but somehow (can't remember the process) I got it to go.
Really loving the new Task Manager, it presents more information, in a more readable and understandable fashion, than it ever has. They updated the system fonts to Segoe (what WinMoPho) uses, which was a great idea as it is a gorgeous font. The new file transfer window is nice as well, but it still is awful at estimating transfer times. I transferred ~40GB of data from one SATA drive to another, and the initial estimate was 14 hours even though the speed it was transferring at reflected a 30 minute transfer time. It eventually changed but it took it a good 5 minutes to do so.
IE, when not the active window uses very little memory (30-40MB for 2 tabs) and 0-1% CPU usage, a welcome change.
All in all, I am interested in seeing how this shapes up, and especially want to see how microsoft will address multi-touch trackpads.