Run the setup.exe from your installation media.
Publicly modified software or improperly activated versions of SolidWorks 2015 frequently suffer from stability issues. Unexpected crashes can result in lost work, corrupted design files, and broken assemblies. Furthermore, unauthorized users are entirely cut off from official technical support, customer portals, and critical service pack updates (such as SP0 to SP5.0) that fix known bugs.
To activate SolidWorks 2015 using a serial number, follow these steps:
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