If you have been searching for this specific version, you have likely come across references to "Startimes." Historically, this name was associated with community forums and repositories hosting older software versions. While these sources might seem like a goldmine for legacy software, users should proceed with caution:

(if delay happens after splash screen): Delete HKEY_CURRENT_USER\Software\SolidWorks\Toolbox

Solidworks 2010 added explorer shell extensions (right-click > "Solidworks"). These kill startimes.

SolidWorks 2010 focused heavily on "Reliability and Performance." It introduced tools to help designers move faster from concept to 3D, including better support for large assemblies and a more intuitive user interface. It was also the last version to support Microsoft Office 2003.