Old product key is not being recognised - how to switch back?

Discussion in 'Account and Subscription Management' started by r__10, Feb 14, 2022.

  1. r__10

    r__10 Bit poster

    Hi, I purchased the Parallels Desktop 9 for Mac back in 2013 and have been using it ever since. When I upgraded my operating system to macOS Monterey version 12.1 yesterday, I reinstalled the Parallels Desktop software which happen to be the latest version. However, after I put in my product key for the old version, I got an error message saying that "This key cannot be used to activate Parallels Desktop". Could you advise what I need to do to start using the software again? How to switch back to my old version if needed?

    Thank you.
  2. DebasmitaM

    DebasmitaM Forum Maven

    Hello, With Mac Os Monterey Parallels Desktop 9 is not compatible. You need to upgrade to Parallels Desktop 17 for using it further. Please purchase Parallels Desktop 17 upgrade from this link.

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