I just installed the Windows 7 Release Candidate in a VM. The VM restarted after installing some updates and showed this message:
Do not turn off your computer? Really? What if my power goes out? Will something break? Will it not recover automatically? Will it become unusable and I’ll be forced to repair it or something? Because that’s pretty shitty. It’s 2009–things like this need to be error proof. If you can’t handle that then get out of the operating system business.