Please I need help.
I purchased two serial numbers from your authorized reseller and installed Visual Studio and Cluster because I needed fortran. However, due to pc issues, I renewed my disks, reinstalled windows, and visual studio. Now that I'd like to re-install the cluster fortran package I purchased it's not working. It says the serial number cannot be registered. I have the old disks (hopefully still functional) but I'll like to transfer my license over. I thought this would be straight forward but I'm having problems.