I recently tried to enable secure boot to play a game, and since then, I've been having issues booting into Windows. After turning on secure boot, I got a black screen, so I removed my GPU and switched to using the motherboard's HDMI output for testing. I reset the BIOS settings, but some configurations didn't change despite the reset message. I made a couple of adjustments and left the others unchanged to try and help Windows load. However, now every time I select a Windows boot option in BIOS, the system shuts down and restarts. I even updated the BIOS from version F11 to F15, but I'm still stuck. Is it possible that the BIOS is corrupted?
3 Answers
What motherboard are you using? It seems like your PC either can’t find a proper boot target or might have an issue with secure boot keys. Sometimes, the system will shut down if it can’t boot due to a key issue. Try manually adding a boot target to the EFI/BOOT/BOOTX64.EFI file. Also, resetting the secure boot keys to factory settings might help.
It sounds like you might need to convert your boot drive from MBR to GPT. Secure Boot only works with GPT partitions. Here’s a quick rundown:
1. Make sure Secure Boot is off.
2. Use a command tool from Microsoft to convert the drive to GPT.
3. Reboot and then re-enter BIOS, turn Secure Boot on, and save changes.
4. Try booting into Windows again.
If Secure Boot is still off, the system might be using the legacy MBR format, which won't work with it enabled.
Sounds like a solid plan! Let me know if you need help with that process.
If your CPU is reaching 90 degrees Celsius in the BIOS, that’s typically a sign of thermal shutdown. Make sure your CPU fan is connected properly and functioning. Without adequate cooling, your system can't boot reliably.
CPU fan isn’t detected? That might definitely be your issue. You should check all connections.
I’ll check that out! Just tried adding the target and I'll see if that works.