activation key doesn't work

Hi Support, I've renewed my licenses in the past week ready for the expiry, but I cannot active my license. I only get this message: "Unable to perform the operation. The license server rejects it." Now I am without a production versin of Windows. I've had several licenses and this one since...

I have purchased 7 perpetual Parallels Desktop for Mac licenses over the years for versions 6, 9, 10, 12, 13, 16, and 19. All licenses are properly registered and visible in my Parallels account. I now need to activate an older Parallels version on an older MacBook, but versions 6, 9, 10, 12...

I have multiple Parallels Desktop for Mac subscriptions but the license keys are not working to activate Parallels Toolbox except one. I get the error message: The license serve doesn't accept your product license.

I bought Parallels Desktop For Mac Business Edition in July 2021 and since then I'm having troubles with Windows 10. I see 'Activate Windows' on the bottom right corner of my desktop. I entered my Windows product key as provided by my institution, I get the a message saying 'The product key...

Hello, I have recently purchased the Parallels Desktop 15 for my Apple MacBook Air 13" 2020, however, my activation key is not working, it says the code isn't valid, I tried contacting Windows and they cannot support me. The Windows activation screen won't leave my Desktop's main page. Do I need...

I tried to move my Parallels Desktop v15 license to my new mac. Restarting PD did not make PD accepting the old license. prlsrvctl activate-license-online ended up with "Unable to confirm the product license. You have reached the maximum number of activations..." Can my license be reset?

Hi, I am having trouble activating my Parallels 11 on my new Mac. I sold my old mac and did not sign out on there before selling it. I reset it completely and sold it. I am unable to activate on the new Mac now. Can you please help me? Please let me know if you need any further information...

Hi, I just received a new activation key, and when I try to attach it to my user account here it fails, saying the key is invalid (even though it's not) Can someone help me with this? Thank you, -Aaron

I bought the parallels desktop 13 and write my activation key but the service said that my key didn't work for the version parallels desktop 14. so I download the parallels desktop 14 and did the installation but my key still doesn't work for the same reasons.