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Thread: MPV1 drivers Windows 11 work around ?

  1. 04-17-2023 #1
    magnoman
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    MPV1 drivers Windows 11 work around ?

    Just purchased a new laptop windows 11 come to find MPV1 drivers will not work..
    Had read a few posts somewhere that with a couple tweaks of the OS can get drivers to work. Anyone have any info on this?
    Thx🙏🙏
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  2. 04-17-2023 #2
    bk2life
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    Old MPVI functionality with Windows 11.
    If your laptop is running Windows 11 and will not let the MPVI drivers install or work properly due to being unsigned with Error 39, this is the fix.
    Start Menu, search registry editor. Flip through the left file tree till you get to the following: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlS et\Control\DeviceGuard\Scenarios\HypervisorEnforce dCodeIntegrity
    Change Enabled and WasEnabledBy values to 0 by double clicking each and putting 0 in the value data box.
    Restart computer
    Should now be functional.
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  3. 04-17-2023 #3
    Hondaeater
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    Quote Originally Posted by bk2life View Post
    Old MPVI functionality with Windows 11.
    If your laptop is running Windows 11 and will not let the MPVI drivers install or work properly due to being unsigned with Error 39, this is the fix.
    Start Menu, search registry editor. Flip through the left file tree till you get to the following: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlS et\Control\DeviceGuard\Scenarios\HypervisorEnforce dCodeIntegrity
    Change Enabled and WasEnabledBy values to 0 by double clicking each and putting 0 in the value data box.
    Restart computer
    Should now be functional.
    You must be running as administrator.

    Right-click the app (executable) and choose the Properties option. Click the Compatibility tab. Check the ?Run this program in compatibility mode? option in the ?Compatibility mode? setting and select the compatibility mode, including Windows 95, 98, XP, Vista, 7, or 8.
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  4. 04-17-2023 #4
    Hondaeater
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    Bk2life
    Does your work around with the hypervisor work Windows 11 home edition or do you need Pro?
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  5. 04-17-2023 #5
    bk2life
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    Quote Originally Posted by Hondaeater View Post
    Bk2life
    Does your work around with the hypervisor work Windows 11 home edition or do you need Pro?
    i have home on the laptop, and 10 on the desktop. no issues with either
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  6. 04-17-2023 #6
    MukIT
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    I had a laptop (Lenovo) for a customer that the Code Integrity was turned off and but still would not allow a driver to load, the fix was to turn off hyper-v in the BIOS which was under advanced>CPU Settings. once that was off the driver loaded.
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  7. 04-18-2023 #7
    Hondaeater
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    Thank You MukIT for adding to this thread. I'm sure it will get some visits as Windows 11 becomes more prominent.
    Magnoman did any of these solutions work for you?
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  8. 04-18-2023 #8
    magnoman
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    Went back to Windows 10 home still can?t load drivers 😡😡
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  9. 04-18-2023 #9
    magnoman
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    I?m getting error code 38
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  10. 04-18-2023 #10
    magnoman
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    Updated,
    Just did Windows 10 update included drivers etc . download MPV1 drivers again.
    Launched HP tuners it now recognizes MPV1 and seas licenses..
    OMG an unreal ? finally .
    HPT really needs to port over to a Mac also..
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