There are two potential suspects the DropboxExt64.24.dll (from Dropbox) and the swdocumentmgr.dll (from SolidWorks):
*** WARNING: Unable to verify timestamp for DropboxExt64.24.dll
*** ERROR: Module load completed but symbols could not be loaded for DropboxExt64.24.dll
Unable to load image C:\Windows\assembly\NativeImages_v4.0.30319_64\mscorlib\abf62e6545d2802fc60286678a67e6bf\mscorlib.ni.dll, Win32 error 0n2
*** WARNING: Unable to verify checksum for mscorlib.ni.dll
*** WARNING: Unable to verify timestamp for swdocumentmgr.dll
*** ERROR: Module load completed but symbols could not be loaded for swdocumentmgr.dll
Probably caused by : msvcrt.dll ( msvcrt!terminate+1e )
The swdocumentmgr.dll has ben implicated with Explorer crashing with "searches" before such as in the following link:
Can you try the following:
Go to the C:\Program Files\Common Files\SolidWorks Shared folder and right-click the swdocumentmgr.dll and rename the swdocumentmgr.dll to swdocumentmgr.old
Log out and log back in.
Does the error still occur?