If you are seeing a blue screen on your computer, you may be experiencing a system crash. Below are some steps you can take to troubleshoot the issue:

1. Check your technical manual and look for instructions about restarting your computer.
2. Check to see if any of your hardware, such as your mouse, keyboard, monitor, etc. need to be replaced or updated.
3. Check your computer's internal settings to ensure that it is set up correctly.
4. Update any drivers or software that may be causing the issue.
5. If possible, restart your computer in Safe Mode.