Computer like people has a limit and when they reach their breaking point, they crash. A computer crash does not happen outright, you may experience having a very slow computer at first and more issues as you move along. Once you experience a computer crash, the best way to go about it is to find someone to reformat hard drive vista to restore your computer’s operating system. This will get your computer up and running again, but for the safety of your files, it is always advisable to save a backup soon as you experience computer issues. Don’t wait for the crash before you do this because it will be harder to recover those important files!