Reset To Factory Settings
It's available for Windows 8, Windows 7 and Windows Vista. Follow these instructions on how to burn the bootable ISO image very carefully, as making a bootable CD can be tricky! If none of the above are applicable to you, you still have these options to restore or repair your computer: Use System Restore. At the very bottom of this menu is where you'll find the reset option. Source
The recovery software will be called various names for each brand of computer, usually along the lines of 'recovery manager'. To access any of System Restore's created snapshots, you must load the utility by any of these methods: Access it from within Windows 8, if you can boot into Windows 8 Great Google apps you didn't know you needed All Android phones come with a bunch of pre-loaded Google apps, but these you'll have to download from...