In this post I explain how to reinstall factory operating system. This should work for most laptops running Windows Vista or Windows 7 OS.
This could be useful if your OS stopped working properly, got corrupted or infected with a virus.
WARNING! Running system restore utility will erase all personal data on the hard drive and re-image it back to factory defaults. Make sure all personal data is backed up before reinstalling the OS. Also, make sure the laptop is running on AC power during the recovery process.
