Steps for Manual Transfer/Deactivation:
In case if your company has restricted access to the internet, then the SolidWorks license can be transferred/Deactivated manually via email.
1. Open the SolidWorks – Help Menu – Deactivate license. (Versions before 2016 “Transfer license”)
2. Choose Manually via email and click Next.
3. Follow the steps in the next page. (Make sure not to close this window until you receive the response text file)