Upgraded to PD 26 - Unable to verify the license signature

[DennisM5]

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.

 

[Trishna Oobeyram]

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.

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,

 

[DennisM5]

Issue now appears to be resolved. I was able to successfully activate 26.

 

[HonzaIl]

Incorrect. Still fails.

 

[Adarsh Jeetun]

Incorrect. Still fails.

Hello @HonzaIl ,
We have sent you a private message for further assistance.
Thank you!

 

[ThomasH41]

I AM HAVING THE SAME ISSUE AFTER TRYING TO INSTALL THE LATEST PARALLELS UPDATE. DURING THE PROCESS IT TOLD ME TO ACTIVATE MY LICENSE. I CLICKED ACTIVATE AND I GET THIS UNABLE TO VERIFY MESSAGE DISCUSSED IN THIS FORUM. I EVEN MANUALLY ENTEWRED MY PRODUCT KEY AND GOT THE SAME MESSAGE. VERY FRUSTRATING - LOCKED OUT NOW.

 

[ThomasH41]

I SHOULD ADD, I HAVE THE PARALLELS DESKTOP FOR MAC PRO SUBSCRIPTION.

 

[DionelL]

Having the same issue after the update. The matter is not resolved.

 

[EricS26]

I SHOULD ADD, I HAVE THE PARALLELS DESKTOP FOR MAC PRO SUBSCRIPTION.

I am also locked out of Parallels Pro 26.1.0

 

[crtdude]

Same here - no activation under 26.1.0 - amazing how they break things regularly with no consequences.

 

[Robertod8]

Same problem here: just updated from 26.0.1 PRO to 26.1.0 and can lo longer open it due to a license verification issue. Hope this gets fixed ASAP.

 

[AndreasG24]

Same problem. Can't activate after Upgrade to 26.1

 

[3Kad]

Same with me. I opened support ticket 4 hours ago, and still no answer. Very frustrating when someone use VM in production environment.

 

[DominicP2]

Having the same issue, Upgraded to the latest version today, now it won't activate and I can;t get any work done! Please fix this ASAP!

 

[주영신]

Help me! Pease let me know what I shall do.

 

[LarsO5]

I have the same Problem with Parallels Desktop Pro 26 on macOS 26. Any Solutions until now?

 

[Adarsh Jeetun]

Hello,
Please note that this is a known issue and it is currently being investigated by our Development team.
As a workaround, we would recommend to downgrade to Parallels Desktop 26.0.1 using this link.
Note: When prompted to update to the latest version, kindly do not update to latest build and use current version.
You may subscribe to this KB Article to be notified once a fix is released.
Thank you!

 

[brzasa]

24 hours later, this is still a problem. v26.1.0. After about 30 tries with the Activation Key out of online account. I still keep getting "Unable to verify the license signature."

 

[Adarsh Jeetun]

Hello,
Kindly note that this issue has been fixed in the latest released update, Parallels Desktop 26.1.1.
You may use this link to download the update and check.
Thanks!