Aporte original por: BobbyFix ,
If you have Windows 8 / 8.1 installed, you can use the built in recovery feature of the operating system. Go to control panel -> Recovery -> At the bottom there is a link which reads 'If you are experiencing problems with your PC...' and then 'Remove everything and reinstall Windows'. This will delete everything and do a full reinstall. It should use the recovery drive available on your laptop to restore to factory defaults.