A computer can sometimes become unresponsive and unable to start up for a variety of reasons, including problems with the software, hardware or user error. In some cases, it may be necessary to restore the computer to its factory settings. This process will erase all of the data on the computer, so it is important to back up any important files before starting.

To restore a computer, first make sure that it is turned off. Next, disconnect all of the cables from the computer, including the power cable. Once the computer is completely disconnected, hold down the power button for …