There are a number of possible causes for a computer to crash when starting up Windows. Some of the most common causes include:
1. Corrupt or damaged system files – This is one of the most common causes of computer crashes. If your system files are corrupt or damaged, it can cause your computer to crash during startup. You may need to run a disk repair utility such as CHKDSK in order to fix any damaged system files.
2. Incompatible hardware or software – If you have recently installed new hardware or software, it can be incompatible with the system and cause your computer to crash. Try uninstalling the new hardware or software to see if the issue is resolved.
3. Outdated Drivers – If you are using outdated drivers, they can cause your computer to crash at startup. Try updating your drivers to the latest version available.
4. Hardware failures – If any of your components such as the hard drive, RAM, CPU, GPU, etc. are malfunctioning, it can cause your computer to crash at startup. Try running a diagnostic test to see if any of the components are failing.
5. Viruses and malware – Viruses and other types of malicious software can cause your computer to crash during startup. Run an anti-virus scan to check for any threats and remove them if found.
6. Overheating – If your computer is overheating, it can cause it to crash during startup. Try cleaning out your case to ensure that there is adequate airflow and that the fans are properly functioning. You may also need to reapply thermal paste on the CPU if it has been a while since you did so.
7. BIOS settings – If your BIOS is not configured correctly, it can cause your computer to crash during startup. Try resetting your BIOS settings to their default values and see if the issue is resolved.
8. System instability – If your computer is not stable, it can cause it to crash during startup. Try running a memory test to check for any errors and update your system to the latest version available.
9. Poor cable connections – If any of your internal cables are loose or disconnected, it can cause your computer to crash during startup. Check all of your internal cables and make sure they are properly connected.
10. Power issue – If the power supply is inadequate or not configured correctly, it can cause your computer to crash during startup. Try testing the power supply with a multimeter to make sure it is providing the correct voltage.