Everyone has been faced with removing a stripped screw at least once in their life. Removing a stripped screw usually leaves a little damage to the area around it. This is fine on a wooden deck or somewhere a little scratch or mark will not matter, but not on your computer. A stripped screw on a computer poses two problems: the risk of damaging the computer to remove the screw and the increased difficulty of removing tiny screws often found on computers. With a little work, you can remove a stripped screw from a computer.
Select a Phillips screwdriver in which the tip will fit tightly in the stripped out screw hole. Place the screwdriver tip into the screw hole, put pressure on the screw with the screwdriver and try to turn the screw counterclockwise. If you still can't turn the screw, go to the next step.
Using the Dremel tool with the metal cutting disc bit, carefully cut a slot in the top of the screw deep enough for a flathead screwdriver to fit in the slot. Take a flathead screwdriver, sized to fit the blade tip in the newly created slot, and place it in the screw head slot and turn counterclockwise. You should be able to unscrew the screw, but if you still can't, go to the final step.