This is simply not correct, TXT is not required for this, the TPM can still and does protect your OS and boot loader from tampering, it&#x27;s also not required for Windows Secure Boot.<p>TXT extends the chain of trust to the BIOS&#x2F;UEFI by having the CPU take charge of some of the verification, secure boot supported UEFI&#x27;s (if they meet the UEFI standard version 2.3.1c or higher) can also extend the protection envelope beyond the OS&#x2F;MBR but the main function of TXT is to protect tampering with low level firmware not OS&#x2F;bootloaders.<p>&quot;Intel TXT uses a Trusted Platform Module (TPM) and cryptographic techniques to provide measurements of software and platform components so that system software as well as local and remote management applications may use those measurements to make trust decisions. <i></i>This technology is based on an industry initiative by the Trusted Computing Group (TCG) to promote safer computing. It defends against software-based attacks aimed at stealing sensitive information by corrupting system and&#x2F;or BIOS code, or modifying the platform&#x27;s configuration.<i></i>&quot;