How do you reset a computer that will not reboot?

Answer 1

If the computer is stuck in a situation where it no longer accepts commands and doesn't shut down as requested, you should give it amble time so that any potential pending operation can complete or fail gracefully. If the situation doesn't change, you should consider forcefully removing power.

In a desktop PC, this is easily accomplished by unplugging the mains cable from the wall socket. In a laptop or other portable device, you may also need to remove the battery.

Note this is an emergency measure. Forcefully removing power in this manner can cause data loss or even damage to hardware. Modern systems are designed to cope with unexpected power outages, however. You'll need to allow extra time when re-starting, as the operating system will (hopefully) scan the hard drive or flash memory drives for errors caused by the sudden power outage, and attempt repair.

Answer 2

If you are running Windows Operating system, then you can use 'shutdown -a' to abort a shutdown.

Click Start -> Run

Type 'shutdown -a' in text box.

Then click OK.

This will stop the shutdown process. It is hard to find why system is rebooting. It may be a virus which is causing the shutdown. By running this command you will get time to research.