Karen Lange 0 Report post Posted July 3, 2020 My Nitro program has gone back to trial mode. I have tried to reactivate using my serial number but it says this serial number is already activated. Can you please help. Share this post Link to post Share on other sites
AllainU 0 Report post Posted July 3, 2020 Hello @Karen Lange, 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? To send it via private message, hover your mouse on top of my name 'AllainU' and select 'Message'. Thank you very much in advance and I am looking forward to hearing back from you. Share this post Link to post Share on other sites
David Kalina` 0 Report post Posted July 6, 2020 (edited) I have the same problem with the Nitro Pro 12 reverting to trial mode after a Windows update. I have tried to activate it using the original serial number and activation code.. but the installation ID of the program has changed from the original installation ID. The serial number of the initial installation is: 181***************. Please assist. thank you Edited July 7, 2020 by Reymund G. Actual serial number included in post Share this post Link to post Share on other sites
AllainU 0 Report post Posted July 7, 2020 Hello @Karen Lange, Thank you for the private message. To further assist you, I just made an adjustment on your license, so you can now activate your copy of Nitro Pro 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. Share this post Link to post Share on other sites