Not all computers are the same, some have what is called restore to factory specs. You push an fkey and it will returrn your computer to the way it was the day you bought it. The information is in your computer manual.
But you do not need it.
Download this for free, pute a copy on an external hard drive. Update once a month. If something happens you can return to where you were just a few days ago. You will have all of your programs, settings and everything else Free Backup Software: Paragon Backup & Recovery Free Edition - Overview