When I first installed SolidWorks 2014-2015, it installed perfectly fine. However whenever I tried opening it, it would not. I reinstalled many times until I decided to delete the files and the registry manually. Ever since then whenever I try installing SolidWorks, it does not work. Sometimes I get the set_quitemodeactions problem where it says that the said file is missing. And sometimes I get multiple components files missing whenever I try to install the addons that come with it.

And ever since then, my license does not work.

How can I reset and install a function copy of SolidWorks?

Thanks, Armin Hatami.