Alexander Atanasov 0 Report post Posted January 30, 2019 Hello, I've got a new computer and I need to reinstall my Nitro Pro 9, however, when I try to Deactivate the product on my current computer it shows me "-20: Error - Invalid License Number". Please assist, as I need to move to the new computer as soon as possible. Thank you, Alexander. Share this post Link to post Share on other sites
Alexander Atanasov 0 Report post Posted January 30, 2019 In addition, may I use Nitro Pro 9 on Windows 10? Share this post Link to post Share on other sites
AllainU 0 Report post Posted January 31, 2019 Hello @Alexander Atanasov, Thank you for reaching out to us through our Community Forums! Kindly note that error 20 comes up when an invalid serial number is entered. Could you double check to make sure that you noted it down correctly? You can also try typing the serial number instead of copying/pasting when activating. With regard to your second questions, I should let you know that we no longer support Nitro Pro 10 or older. It has been discontinued as documented in our Sunset Policy: https://www.gonitro.com/support/sunset-policy As a courtesy, yes you can install your Nitro Pro 9 on Windows 10. Thanks for choosing Nitro Pro and I hope this helps! Share this post Link to post Share on other sites
Alexander Atanasov 0 Report post Posted January 31, 2019 (edited) Hello @AllainU, Thank you for the prompt response, however, I'm trying to deactivate my Nitro Pro 9 first. When I go to Activation (where the serial number is entered), it is already filled with the serial number, I did not even need to type it in. I believe it should not appear is invalid. Please advise. Thank you, Alexander Edited January 31, 2019 by Alexander Atanasov Share this post Link to post Share on other sites
AllainU 0 Report post Posted January 31, 2019 (edited) Hello @Alexander Atanasov, Thank you for your response and for this additional information. In order for me to further assist you with your concern, could you please send me a private message and provide the serial number of your Nitro Pro 9? Thank you very much in advance and I am looking forward to hearing back from you. Edited February 1, 2019 by AllainU Share this post Link to post Share on other sites