Motherboard · critical

How to fix Missing certificates for Secure Boot

Error code: SEC-BOT-KEY-MS

What this error means

Safe boot platform keys deleted, can't boot into Windows 11. The usual suspects are dead battery CR2032, short circuit on the motherboard, aborted BIOS update process and age of capacitors.

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
01Replace the CMOS battery on the motherboard
  1. Replace the CMOS battery on the motherboard
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.

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02Use the USB BIOS Flashback function (if the board has a button)
  1. Use the USB BIOS Flashback function (if the board has a button)
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
03Check the rear I/O panel for a short
  1. Check the rear I/O panel for a short
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

  • Dead battery CR2032
  • Short circuit on the motherboard
  • Aborted BIOS update process
  • Age of capacitors