Upgraded to PD 26 - Unable to verify the license signature

Discussion in 'Licensing and Activation' started by DennisM5, Aug 26, 2025 at 9:48 AM.

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  1. DennisM5

    DennisM5 Junior Member

    Messages:
    13
    I have a PD for Mac Pro Subscription. I downloaded PD 26 and installed it. When I tried to activate, I get an error "Unable to verify the license signature". I have tried using "sudo chflags 0 /Library/Preferences/Parallels/licenses.json" in Terminal but it did not work.
     
    DennisM5, Aug 26, 2025 at 9:48 AM
    #1
  2. Trishna Oobeyram

    Trishna Oobeyram Staff Member

    Messages:
    351
    Hello @DennisM5
    Please note that this is a known issue and we are currently investigating.
    As a temporary workaround for now, please uninstall Parallels Desktop 26 (open Finder > click on Applications > right click Parallels Desktop and move to bin). Then download and install Parallels Desktop 20.4.1 from:
    https://download.parallels.com/desktop/v20/20.4.1-55996/ParallelsDesktop-20.4.1-55996.dmg
    Regards,
     
    Trishna Oobeyram, Aug 27, 2025 at 4:18 AM
    #2
  3. DennisM5

    DennisM5 Junior Member

    Messages:
    13
    Issue now appears to be resolved. I was able to successfully activate 26.
     
    DennisM5, Aug 27, 2025 at 7:15 AM
    #3
  4. HonzaIl

    HonzaIl Member

    Messages:
    53
    Incorrect. Still fails.
     
    HonzaIl, Aug 28, 2025 at 2:34 PM
    #4
  5. Adarsh Jeetun

    Adarsh Jeetun Staff Member

    Messages:
    85
    Hello @HonzaIl ,
    We have sent you a private message for further assistance.
    Thank you!
     
    Adarsh Jeetun, Aug 29, 2025 at 12:30 PM
    #5

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