Start up repair problem. My computer won’t boot up. Help please. FIXED, LOOK AT DESCRIPTION!!

My computer won’t start up. I do not know what to do. I had the redirect virus,and I don’t know if that had anything to do with this. I also had my phone plugged in the first time it happened. FIXED PLEASE IF YOU HAVE THIS PROBLEM TURN YOUR COMPUTER OFF AND THEN PRESS F7 REPEATEDLY YOU’LL GET TO A MENU THAT SAYS last known good configuration. click on it and the rest is history if this sounds complicated watch the video.