Changed PCs, deactivated serial number on old PC, I get a 'select a device' when I attempt to reactivate on the new PC. There is no available options listed to 'select a device', then the system option repeat themselves.

[Tim Woodcock]

Changed PCs, deactivated serial number on old PC, I get a 'select a device' when I attempt to reactivate on the new PC. There is no available options listed to 'select a device', then the system option repeat themselves.

[Leslie V]

Hello @Tim Woodcock

Thanks for reaching out to us! I am happy to assist you.

I see that you have purchased version 11 a few years back. Please note that we no longer support Nitro Pro 11 and its activation servers have been shut down.

We recommend to upgrade to our latest version, V13, which comes with significant stability and security improvements, as well as many feature enhancements, in particular in conversion and OCR functions. To upgrade to Nitro Pro 13, please visit our upgrade page: 
https://www.gonitro.com/pro/upgrade
 
Alternatively, you can upgrade to the latest build of Nitro Pro 12. Per our Sunset Policy, https://www.gonitro.com/nps/product-details/sunset-policy, we have stopped making feature enhancements to version 12 once we released version 13. You can find Nitro Pro 12 installer from the page below and activate it with your current Nitro Pro 11 serial number. 

https://www.gonitro.com/nps/product-details/downloads
 
Please let us know if you need any further assistance.