That's a known issue related to Windows Installer hotfix KB3072630.
This needs to be uninstalled before installing SolidWorks up to 2015sp4.
If you installed directly (without admin Image) - remove the hotfix, repair install
SolidWorks or reinstall it entirely (first uninstall solidworks, then the hotfix!)
After repairing or installing SolidWorks reinstall the hotfix.
Typically swvbaserver keeps crashing and remains in Memory
after closing SolidWorks and Addins aren't registered and so on.
See also advices inside the knowledgebase of SolidWorks.
It's also possible to adjust a registry key instead of removing the hotfix.
Have you tried updating/reinstalling your Windows .NET Framework?
I had this problem a while ago and I solved it through this.
I had these problems a while ago as well
i just found this thread on this forum
it indeed is the windows update/registry key KB3072630
since not everyone is verry knowledgeable to just go edit the right registry key
i made a little script that does it for u
i also included a readme so u follow the steps in it to make solidworks preform like normal again
this wil work on windows 8 / 8.1 and windows 10
to my knowledge it has worked for soldiworks 2009 2011 2013 and 2014
it must also work for other versions but i just have not been able to test it for them as i know no one with these versions