https://nondeterministic.computer/@mjg59/111853539159874427
> If Windows has booted on a system and provisioned the TPM, it'll set a random owner password. This is a problem on Linux if you want to do anything that requires owner auth (most operations don't), but you can fix it by doing:
>
> `echo 5 >/sys/class/tpm/tpm0/ppi/request
>
> and rebootiing. This asks the firmware to clear all TPM contents. Obviously, this invalidates all existing secrets (including Bitlocker keys, so you'll need to recover that if you dual boot)