I was just fooling around with my reg edits.. Upgrading system cache and all that... i rebooted my comp and it didnt start... Wow! I knew it would happen too :( . Oh well its a lesson learned.. It was so bad i couldnt even get my back up regedits to work.. So here i am re installing my windowz :P may this be a lesson to some of you.. never screw around with registry :)