(Redirected) Alienware X51 R2 factory restore

Hello, I purchased a used Alien ware desktop today and when I returned home found out that it was never restored. The store that I bought it from is closed until Tuesday. The previous owners log in info is still on the pc and I can not get in to restore it. So I am needing help to restore it from start up. I have googled it and found to do ctrl and F11, i tried, then i tried F8 and also F12. I can not get this system to bring up the restore options. Can someone please help me?