TheoL 0 Report post Posted July 26, 2020 I have Nitro pro installed on may laptop, and desktop as per EULA. On desktop, I only occasionally use. Since I last used Nitro Pro on this machine, windows 10 upgraded to 2004 release. When I started Nitro Pro to use, it informed me was not activated (but it had been). When go to the activation portal, reported that only 1 of 2 activations active. But I reset anyway, and tried activating again. Always, I get the error "-23: Error - License number already used" - and I cannot activate Nitro Pro. I am using version 12.10.1.487 I tried deactivating on my laptop, (with intention to re-activate on both laptop / desktop), but in deactivation dialog reported that the serial number was not valid. Thanks Share this post Link to post Share on other sites
Reymund G. 0 Report post Posted July 26, 2020 Hi @TheoL, Thank you for reaching out to us through our Community Forums! Please send me your serial number through private message so I could check on it. To send a private message, simply mouse hover to my profile then click the 'Message' link. Kind regards, Share this post Link to post Share on other sites
Daniel Nebauer 0 Report post Posted July 27, 2020 Hi, I have had the same problem and cant reactivate my program. Can i please get some help? Share this post Link to post Share on other sites
Reymund G. 0 Report post Posted July 27, 2020 Hi @Daniel Nebauer, Thank you for reaching out to us through our Community Forums! Please send me your serial number through private message. To send a private message, simply mouse hover to my profile then click the 'Message' link. Kind regards, Share this post Link to post Share on other sites
Daniel Nebauer 0 Report post Posted July 27, 2020 Thanks Reymund but i uninstalled and reinstalled and then restarted my computer twice and it activated again. Share this post Link to post Share on other sites