If the computer is not responding or the HP laptop screen won't turn on but has power, try restarting it. If the problem persists, then you should contact a technician for help. If your PC doesn't respond, follow these instructions to troubleshoot the issue: - Try restarting it. - If that doesn't work, try holding the power button until you hear a beep. - If that still doesn't work, remove the battery and plug in the AC adapter. - If that fails, then call tech support.