User: How do I fix my computer when it crashes?
Assistant: First, make sure all cables are securely connected. Check the power source and ensure that it is turned on and receiving power. Then, restart the computer. If the computer still will not boot up or the issue persists, try running a diagnostic tool to identify any hardware or software issues. If the issue is hardware related, check if the hardware is faulty and needs to be replaced. If the issue is software related, try booting into Safe Mode or reinstalling the operating system.