Error codes

TPM 2.0 missing

This PC can't run Windows 11

What it means

Windows cannot find a Trusted Platform Module. Windows 11, BitLocker and some anti-cheat systems expect one.

Common causes

• TPM is switched off in the BIOS/UEFI
• Old firmware without fTPM/PTT
• The TPM was cleared or the firmware was reset

How to fix it

1. In the BIOS/UEFI enable AMD fTPM or Intel PTT (also called Trusted Platform Module or Security Device Support), save and restart.
2. Open tpm.msc: if it says the TPM is ready, Windows just needs a restart.
3. Update firmware only from the maker's official support page, with the PC on a stable power source and nothing else running.
4. In Device Manager, check Security devices for a warning on the TPM.
5. If the board has no TPM header or firmware option, a discrete TPM module may be required.