PC goes to error screen and reboots at start-up

Troubleshooting Startup Issues: What to Do When Your PC Keeps Rebooting

If you’re facing frustrating startup issues with your PC, you’re not alone. Many users encounter problems where their computer repeatedly reboots during the boot process, often stalling at the spinning circle screen. The situation can be particularly concerning when you’re greeted by error messages such as “IRQL_NOT_LESS_OR_EQUAL” or “0xc000021A.”

When these errors occur, it’s easy to jump to the conclusion that the hard drive may be the culprit, and understandably so. In an effort to resolve the issue, some users opt to replace the hard drive. However, even after doing so, they find that the reboot cycle continues, especially when trying to boot from a USB drive for a fresh Windows installation. Instead of moving forward, the system either hangs at the spinning circle indefinitely or returns to the dreaded error screen.

If you’ve tried replacing the hard drive and are still battling the same boot issues, it’s time to explore further options for diagnosing and fixing your PC. Here are some steps you can take:

Check the RAM: Faulty RAM can trigger reboot loops and various error codes. Consider running a memory diagnostic tool to rule out any memory issues.
Inspect Peripheral Devices: Sometimes, external devices can interfere with the boot process. Disconnect all peripherals except for the keyboard and mouse, and attempt to boot again.
Test the Power Supply: A weak or failing power supply can lead to instability. Ensure that your power supply is functioning properly and providing adequate power to the system.
Verify BIOS Settings: Enter the BIOS setup and check to ensure that the hard drive is recognized. Additionally, reset the BIOS settings to defaults as incorrect settings can lead to boot issues.
Use Recovery Tools: If you have access to a Windows installation media, try booting into the recovery environment. You may be able to access repair options like Startup Repair or System Restore.
Examine for Hardware Issues: Consider whether other components, such as the motherboard or graphics card, may be failing. Testing the hardware components or seeking professional assistance can help identify the root cause.
Seek Professional Help: If the problem persists after trying these measures, it may be time to consult with a professional technician who can provide in-depth diagnostics and solutions.