When troubleshooting a computer what do you do if the computer does not boot?

Answer 1

To answer this question, one must know the exact part of the boot sequence that does not happen successfully. It can be as simple as a loose power cord, or something more extensive like a bad CPU or RAM. I will attempt to go through common scenarios that would cause a computer to not boot.

Does not power on

If the power light on the front of the computer does not turn on, and you don't hear the fans running, the problem is most likely electrical. Follow these steps:

1. Check the power cord leading from the wall/power strip to the back of the computer. Ensure it is plugged in the whole way.
2. Check the power strip's circuit breaker. If it is tripped, reset and try again.
3. Check the fuse/circuit breaker for the room. If it is tripped, reset and try again.
4. If these solutions do not solve your problem, take the computer to an experienced technician as the power supply or other internal components might be bad.

Computer turns on, but Windows will not loadMost likely, this is a problem with system files. They can be corrupted, missing, or for the wrong version of Windows. Try booting in Safe Mode to see if the required system files are present. If Safe Mode will not work either, there are commercial products like ERD Commander that will allow you to boot into a Windows "shell" and contains diagnostic utilities.

Less common, a bad RAM module or CPU might also cause this problem. If Safe Mode, an Emergency Repair Disc, or other diagnostics will not function, try running the on-board diagnostics. If no on-board diagnostics exist, your best bet is to take the computer to a professional.

Computer turns on, but Windows doesn't start loadingIf this is the case, the problem most likely lies within your computer. The problem could also be corrupt system files, but usually the problem is with RAM, the CPU, or other cards like video. In any case, the problem is most likely serious enough to warrant taking it to a professional for assistance.

Of course, these solutions are only generic. If you were to provide further details, I'll be able to pinpoint the error and advise you from there.