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  1. TimothyK4
    Post

    Upgrade Key not working with my previous version key after installing on new mac.

    Correction, "The previous activation key has not been accepted by the license server" Is the error, using the original key ending in "HGFQVX"
    Post by: TimothyK4, Jan 15, 2026 in forum: Licensing and Activation
  2. TimothyK4
    Post

    Upgrade Key not working with my previous version key after installing on new mac.

    I attempted to do so, and received the error "This key cannot be used to activate parallels desktop"
    Post by: TimothyK4, Jan 15, 2026 in forum: Licensing and Activation
  3. TimothyK4
    Thread

    Upgrade Key not working with my previous version key after installing on new mac.

    Hello good folk, I am having an issue with an upgrade key of mine not working when I attempt to enter the previous version key. I'm getting the...
    Thread by: TimothyK4, Jan 12, 2026, 3 replies, in forum: Licensing and Activation
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