tpm pcr7 secure boot

The tag tpm pcr7 secure boot covers discussions about the interaction between Trusted Platform Module (TPM) PCR7 validation and Secure Boot, particularly in the context of BitLocker drive encryption on Windows 10. A notable topic is how Microsoft's cumulative update KB5094127 can cause a one-time BitLocker recovery key prompt on managed PCs. This occurs when BitLocker, Secure Boot, PCR7 validation, and the Windows Boot Manager transition conflict under specific Group Policy configurations. The issue highlights challenges IT departments face in maintaining alignment between an aging security stack and evolving Secure Boot trust chains. The tag is relevant for enterprise IT professionals managing Windows 10 security and BitLocker deployments.