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:
    12
    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:
    350
    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

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