What OS and if you changed it through the System tray icon it should stay put. If you are Win98 I suggest you run SFC from Start\Run type SFC press enter you should have your Win CD in the comp stop setup running when you put the CD in
The Evil Within 2 review-in-progress
InVision Studio takes on Adobe XD and Sketch
Camera tips to take better iPhone photos
Comment transformer un iPhone en borne Wi-Fi ?