Supermicro X11DDW-L/NT User Manual page 187

Remove 'UEFI CA' from DB (available when the system is not in Device

Guard Ready)
Select and press Yes to remove Microsoft UEFI CA certificate from the DB. The options
are Yes and No.
Restore DB defaults

Select and press Yes to restore the DB variables to factory defaults. The options are
Yes and No.
Appendix F: Secure Boot Settings
189