You have to read your user guide and burn the reinstall discs using the provided procedure. That's the way most all new computers are shipped, and have been for a number of years now. I promise it won't give you leprosy to read your user guide.
I'm unable get File History to execute. Windows 8 recognizes my external HD which I used to transfer my files from my desktop. It works normally otherwise. When I go to the Libraries page and select "History" button, I then select "configure FileHistory settings" in "Control Panel""File History is Off" and E:drive are displayed. I select "Turn On" and "Yes" to recommend drive to my homegroup. At this point I receive an error message "Could not enable FileHistory" and "The system cannot find the file specified". Folders named FileHistory, Data, and Configuration have been created on the external HD but they don't contain any files. Am I missing an executible file from Windows? If so, how can I get it back. My Toschiba Satellite didn't come with Windows 8 discs.