Windows 10: Clarification on BitLocker Behavior with CPU/Memory Changes and PCR1 Dependency.

Discus and support Clarification on BitLocker Behavior with CPU/Memory Changes and PCR1 Dependency. in Windows 10 Gaming to solve the problem; Hi,We are conducting validation testing on BitLocker behavior under hardware changes and would like clarification on a specific scenario. Environment:... Discussion in 'Windows 10 Gaming' started by kuo myron, May 5, 2025 at 3:57 AM.

  1. kuo myron Win User

    Clarification on BitLocker Behavior with CPU/Memory Changes and PCR1 Dependency.


    Hi,We are conducting validation testing on BitLocker behavior under hardware changes and would like clarification on a specific scenario. Environment: OS: Windows Server 2025 TPM: dTPM 2.0 Enabled in BIOS BitLocker: Enabled and encryption completed on OS driveObserved Behavior:After changing the memory RAM size or replacing the CPU, the system boots directly into Windows without prompting for the BitLocker preboot recovery screen. According to BitLocker Recovery Overview, hardware changes such as the CPU or memory are not explicitly listed as triggers for BitLocker recovery. However, we e

    :)
     
  2. Jelo Sen Win User

    INCORRECT CPU FREQUENCY READING

    Hello Muhammad,

    CPU usage depends on the applications that are open to your device. To isolate the problem, we suggest that you answer the following questions:

    • Can you include a screenshot of the CPU reading?
    • Have you tried performing a
      clean boot
      to eliminate software conflicts?
    • What troubleshooting steps have you done so far?

    Looking forward to your response.
     
  3. SerhiyIA Win User
    'System and compressed memory' on ASUS G75VY notebook load CPU always on 16%

    thank you for your reply!

    here what I did:

    1. disabled non-microsoft services, disabled all applications in startup list

    result: after restart "system and compressed memory" still gain 17% CPU

    2. ran PC into safe mode ( just to see what happens )

    result: CPU load is 0% for "system and compressed memory"

    3. ran PC in normal mode

    result: CPU load is 0% for "system and compressed memory"

    as we can see from step 1, the problem probably is not in applications ?

    what would you suggest in this case ?

    looking forward for your answer
     
  4. Sasqui Win User

    Clarification on BitLocker Behavior with CPU/Memory Changes and PCR1 Dependency.

    Overclocking / Undervolting guide for Vega 56 or 64?

    Here's a quick laundry list:

    List of software to use for overclocking and testing
    Examples:
    Wattman (and how to find and use it, like an overview, including profiles)
    Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
    How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

    Step-by step overclocking in Wattman
    Fan speeds
    Power limit
    Temp limit
    Voltages
    Core speeds
    Memory speeds
     
Thema:

Clarification on BitLocker Behavior with CPU/Memory Changes and PCR1 Dependency.

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