I had to go in BIOS secure boot set it to custom --> Maximum Security
Now PCR7 register is enabled
I have an MSI pro b550m-vc wifi
Possible it's the same in BIOS on a b450 bios
Happen at shutdown or reboot
Last boot time:
Get-CimInstance -ClassName win32_operatingsystem | select csname, lastbootuptime
Alway happen from last shutdown, resart