Firmware · critical

How to fix Loop of reboots after BIOS

Error code: BIOS-BOOT-LOOP

What this error means

The PC restarts in an endless loop after POST. Problem with UEFI boot records or corrupted BCD. The usual suspects are damaged BCD and bad EFI entry.

Updated

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 3 complete
01bootrec /rebuildbcd from USB
  1. bootrec /rebuildbcd from USB
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors
02Startup Repair in Windows Recovery
  1. Startup Repair in Windows Recovery
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors
03Rearrange the boot order in the BIOS
  1. Rearrange the boot order in the BIOS
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Damaged BCD
  • Bad EFI entry
  • Bad boot disk in BIOS