Hello,

We have two separate licenses, one for Solidworks 2017 Professional and one for Solidworks 2023 Professional. The price I got to upgrade from 2017 to 2023 was about the same as the new license, so I bought a new license. I installed and activated the new 2023 license on the same computer that had the 2017 license. For a while, both versions worked on the same computer. Then, since I didn't use