Why does my computer keep resetting when I start it up?

If your computer keeps restarting during startup, it’s usually caused by a hardware fault, corrupted system files, or a failed update.

First, try booting into Windows Safe Mode to see if the system loads without restarting. If it works there, a driver or recent update may be the problem. You can also run Windows Startup Repair from recovery options to fix boot errors.

Other common causes include faulty RAM, overheating, or a failing power supply. Checking hardware components and running the Windows Memory Diagnostic tool can help identify the issue. If the problem continues, reinstalling the operating system may be necessary.