Crashing when exiting an imported model

I have a new problem now. I have been importing either using iges, sat, stl.  On all three of these, I do a save as and the part number that it is going to be. I then close out of the new that I just created...no problem. Then I go to close out of the imported file form mentioned early and my Solidworks crashes every time and I send the crash report to Solidworks.

I currently have my IT department stuck on this one and it is getting old, especially since I am currently working on a hot project and I don't have the time to be restarting Solidworks every 5 to 10 minute due to a crash when closing these imported files.

I have tried all three of these and they all end with the same results.

Oh, I have Solidworks 2015 SP3.0

HELP please

Thanks,

Terry

SolidworksGeneral