Maybe that will teach you for the future!
State of SkyBird:
Why not use a system restore? Choose a restore point from before "problem" started...
Or have a look here:
http://answers.microsoft.com/en-us/w...0-2a2d5e23019f
Or - as a very last resort - make a system repair...
http://www.sevenforums.com/tutorials...all.html?ltr=R
But seriously, using a system image restore would have taken you less than 10 minutes. Now you have used... what? hours?