2026-03-16

It can be very frustrating when you press the power button on your desktop computer and the PC turns on but doesn’t actually boot. In many cases, the fans spin and lights turn on, yet the screen stays black or Windows never loads.
This is a common problem with Windows desktop computers and can be caused by several different issues, including hardware problems, BIOS settings, or operating system errors.
In this guide, we’ll explain why a desktop PC powers on but won’t boot and walk you through the most effective troubleshooting steps to fix the issue.