Before installing or modifying your SOLIDWORKS installation, please take a moment to read through this blog post, or the full SOLIDWORKS document here, detailing reported issues related to Microsoft update KB3072630. This specific Microsoft update effects SOLIDWORKS 2011 through 2016 Beta. Common reported symptoms include: Missing Add-ins, GdtAnalysisSupport.dll error on startup, crashing using macros, instability using equations, and DWG document manager library is invalid or missing when launching.
You may notice the following message when installing or modifying your installation. Clicking the link for more details listed at the bottom of this error message will take you to the same document that I’ve linked above.