Douglas H Posted December 30, 2019 Report Share Posted December 30, 2019 Hello, My customer's hard drive died and I reinstalled Nitro Pro 10. However, our license number isn't working. Nitro Pro Activation Assistant says: "-23: Error - License number already used" The license portal and links in the software activation screen take me in circles. The following link tells me to "[...] contact Nitro Support Team to deactivate devices belonging to this serial number" https://licenses.gonitro.com/prd/portal Link to comment Share on other sites More sharing options...
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