Windows 8 Consumer Preview Problem?

I have had the windows 8 consumer preview for a long time. It wont let me reset my PC. I think I pressed some random setting and reset my PC before, but then I pulled the plug out when it said not to. Now it says there was a problem resetting your pc. 1 year has past and still doesn't reset my pc Or go on the interent because its just refreshing every second and when I go in my programs installed list, theres nothing in the LIST!!?? I don't have a browser or anything. please help asap. THE MAIN PROBLEM IS THAT I WANT MY OLD WINDOWS BACK! IHATE THIS WINDOWS CONSUMER PREVIEW I HAD AND I WANT TO ACCESS THE INTERNET LIKE BEFORE.