Pritam Ojha 0 Report post Posted October 3, 2020 After hard disk change product not activating. When putting serial number massage showing that (-20: Error-Invalid license number. The serial number entered does not exist) . During previous installation got activation code against installation ID. But this time installation ID is different. What to do, please guide me. Share this post Link to post Share on other sites
Reymund G. 0 Report post Posted October 5, 2020 Hi @Pritam Ojha, Thank you for reaching out to us through our Community Forums! Please send me your Nitro Pro serial number through private message so I could check its version and activation records. To send a private message, mouse hover my profile then click the 'Message' link. Kind regards, Share this post Link to post Share on other sites
