Since there was no hard drive activity, I powered it off, waited a couple of minutes, turned it back on and it just started normally. :)

THANK YOU! :):):) Computer is up and running Windows 7 again. Thanks for your help.

Hey! I've done this and my computer has now been sitting at the go back to previous build for close to 20 hours..... it says it's restarting but my computer has never been able to power down by...