This error occurs when the Nessus license server believes the activation code is already active on another machine, or if a previous installation wasn’t properly deactivated before a reinstall.
A text block containing your new , along with a link to download it as a nessus.license file. Download this file to your machine. nessus offline activation license already in use full
Before you can generate a new offline license file, you must free up the code from its current assignment. This error occurs when the Nessus license server