You can left click to highlight and then click the Change button. Or, you can right click on SOLIDWORKS and pick Change.
The SOLIDWORKS Installation Manager window will appear. On the Welcome to the SOLIDWORKS Installation Manager page, select the Modify the individual installation (on this computer) radio button, and then click Next. That will take you to the Serial Number page of the SOLIDWORKS Installation Manager. Since we are only checking to see what the SOLIDWORKS serial number is, you can simply click the Cancel button to exit the SOLIDWORKS Installation Manager.
Use the Registry Editor to Show the SOLIDWORKS Serial Number The last way to find your SOLIDWORKS serial number that we will look at is to view the SOLIDWORKS serial number in the Windows Registry. Click the Windows Start button, type regedit, and hit Enter or click Run command. Note: You need to have Admin rights to view the Registry Editor. In the Registry Editor window, browse to: Computer HKEY_LOCAL_MACHINE SOFTWARE SolidWorks Licenses Serial Numbers The SOLIDWORKS key to the right displays the SOLIDWORKS serial number. Hopefully the next time that you asked for your SOLIDWORKS serial number, you will be able to find it easily using one of the above methods.