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compatibility module

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The compatibility module, often referred to as the Compatibility Support Module (CSM) in UEFI firmware, is a feature that enables legacy operating systems and hardware to boot on modern systems with Secure Boot enabled. Discussions on WindowsForum.com highlight that enabling Secure Boot and disabling the CSM can prevent older operating systems like Windows 7 from booting, as they lack UEFI-compatible option ROMs for devices such as graphics cards. Users report that when Secure Boot is active, attempting to boot Windows 7 may trigger BIOS settings to reset for compatibility, allowing the system to boot after adjustments. This underscores the role of the compatibility module in bridging legacy and modern boot requirements.
  1. Saltgrass

    Windows 8 Secure Boot seems to be working...

    I have been playing around with the Secure Boot feature to see if I could tell what properties it might show. Currently, to enable the full Secure Boot feature, I have to use the on board graphics, since my Graphics card does not have a UEFI Op Rom. So far, I know Windows 7 will not boot on...
    • Saltgrass
    • Thread
    • bios bios settings boot issues compatibility compatibility module csm firmware graphics card msinfo32 new system operating system rootkit secure boot security features system settings testing uefi user interface windows 8
    • Replies: 1
    • Forum: Windows Help and Support
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