2 ms·Pull the drive out, insert it into his machine, replace, then insert it back.by lostmsu 3y agoPull the drive out, insert it into his machine, replace, then insert it back.mjg59 3y agoAnd now the signature doesn't match, so the system doesn't bootlostmsu 3y agoWhich signature?mjg59 3y agoThe signature that's validated by secure boot. If you don't have secure boot turned on then there's no point in verifying PCR 7, because all PCR 7 contains is the secure boot data.