Windows 11 VM on Parallels has broken virtual TPM.

Discussion in 'Windows Virtual Machine' started by SirioN, Jun 8, 2026.

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  1. ChristianP27

    ChristianP27 Junior Member

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    10
    Yes, I tried it myself almost as soon as I was aware of it and... yeah, it didn't help.
     
    ChristianP27, Jul 22, 2026 at 10:31 AM
    #61
    ChristopherT19 likes this.
  2. fella5

    fella5 Junior Member

    Messages:
    11
    That was pushed today for me and I had to uninstall it to get back to a working state.
     
    fella5, Jul 22, 2026 at 3:11 PM
    #62
  3. Toaster4000

    Toaster4000 Bit poster

    Messages:
    2
    We don't actually know whose bug this is, and this only appears to impact Parallels. The Dell issue cited earlier appears to be unrelated/not anything to do with TPMs.
     
    Toaster4000, Jul 22, 2026 at 5:08 PM
    #63
  4. RobertH88

    RobertH88 Bit poster

    Messages:
    4
    I mean i don't know if it has been determined to be a windows bug or the windows patch triggers a parallels bug.
     
    RobertH88, Jul 23, 2026 at 10:03 AM
    #64
  5. ChristianP27

    ChristianP27 Junior Member

    Messages:
    10
    Fair point, it could be a Windows bug exposing a Parallels bug, true. Regardless, it would be much appreciated if someone from Parallels would provide an update.
     
    ChristianP27, Jul 23, 2026 at 12:09 PM
    #65
  6. EvanR2

    EvanR2 Bit poster

    Messages:
    4
    Same issue here, W11 ARM VM since latest July MS updates broken TPM, cannot communicate with Company Portal/Intune and MS Office apps cannot login. Have not yet attempted rolling back the July KB update, as Intune ring policy would just push it again immediately. Any update from Parallels team on this issue? The silence is deafening around this issue right now...
     
    EvanR2, Jul 23, 2026 at 7:02 PM
    #66
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  7. VicencP

    VicencP Bit poster

    Messages:
    8
    Same issue here :(
    - Mac Mini M4 Pro
    - Parallels Desktop 26.4.0
    - Windows 11 Pro 25H2
    Remove KB5101650 (beware, KB5121767 has the same problem), so uninstall those KB's and "pause" Windows Update for some weeks has been my only workaround.
    Current status: waiting for Parallels to come up with a new release or patch.
     
    VicencP, Jul 24, 2026 at 2:24 AM
    #67
    ChristopherT19 and PhilipO4 like this.
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