Okay, so I got my laptop Christmas 2014, and it has done me well for these two years. Thursday, I accidentally dropped it on its bottom, and I didn't touch since Saturday afternoon. It said "Selected boot image did not Authenticate. Press <Enter> to continue" and I tried everything; took the battery out, hard reset, let the battery run out, charge it all the way, and the like.
It will not do anything but come to the same message, and I don't have the money to buy another one or have it fixed. Is there anyway I can possibly fix it on my own before next Sunday [4/3/16]? Because after that, I really need it