Not sure if this has been covered here or not, but I thought I'd post it.
Apparently there's a way to shut off the nag screen that Windows throws up when you cut power to your PC and shut it down immediately. I've yet to try this, but it's been rumored to work:
Yep, that's your best bet. Confirmed working on XP and Windows 7 32bit.
I haven't tried it on Win7 64 bit.
To disable the Windows error reporting screen on startup after a power loss, type this command into an elevated command prompt:
bcdedit /set {current} bootstatuspolicy ignoreallfailures
To turn it off, should you ever need to:
bcdedit /set {current} bootstatuspolicy ignore displayallfailures