First I would try searching for cmd in the start menu's search box. When you find it right click on it and hit "Run as Administrator". Now in the command prompt (black box that opened) type the following: sfc /SCANNOW
First I would try searching for cmd in the start menu's search box. When you find it right click on it and hit "Run as Administrator". Now in the command prompt (black box that opened) type the following: sfc /SCANNOW