Nitro Pro 12 Reverted to Trial Mode

[Tom HM]

Hi,

My Nitro Pro 12 has been working fine for the last year and a half but has now reverted back to the trial mode. I clicked activate and put in my serial number but I get "-23:Error Lience number already used". I've deactivated my activations through the online portal and it now shows zero out of two in use. I've updated Nitro Pro 12 to the latest version (12.16.3.574) and tried to activate again but I'm still getting the same error. Any suggestions? Thanks in advance.

[Allain Umailin]

Hello @Tom HM,

Thank you for reaching out to us through our Community Forums!

In order to further assist you, could you please provide the serial number of your Nitro Pro 12?

To send it via private message, hover your mouse on top of my name 'AllainU' and select 'Message'.

This matters because our business installers are different from the online ones.

Thank you very much in advance and I am looking forward to hearing back from you.

[Tom HM]

Thanks Allain. I've sent you a PM with my serial number.

[Allain Umailin]

Hello @Tom HM,

Thank you for the message.

Did the affected machine installed a major Windows Update prior to this issue?

If yes, kindly note upon the upgrade of the operating system or installing a major Microsoft update, the Computer ID is changed, as it is comprised partially by the operating system. Once changed, this will no longer recognize the original installation causing the program to revert to trial mode.

To fix this issue, I just made an adjustment on your license, so you can now activate your copy of Nitro Pro 12 by going to Help tab > About Nitro Pro > Activate, entering your serial number and clicking Activate.

Thank you for choosing Nitro and I hope this helps.

[Tom HM]

Thank you, Allain. It's working fine now. The computer is set to install Windows updates automatically and is now on Windows 10 version 1909.