Mohamed Youssef 0 Report post Posted June 24, 2019 Hi Team; Nitro PDF switched to trial mode after microsoft windows 10 upgrade. I used the https://licenses.gonitro.com/prd/portal to deactivate all installations. I am still getting error -23 License number is already used. appreciate your help. Thanks, Mohamed Share this post Link to post Share on other sites
Leslie V. 0 Report post Posted June 24, 2019 Hello @Mohamed Youssef, Thanks for reaching out to us! I released your key so you can reuse it. Please try again. I hope that helps! Share this post Link to post Share on other sites
Mohamed Youssef 0 Report post Posted June 25, 2019 Thanks; it is activated now. Share this post Link to post Share on other sites
