# Repeated crashes using a Boolean / Difference Modifier

I am trying to model a pistol in blender, when i try to subtract the solid block using the boolean tool all it does is crash my program. Any help solving this problem would be greatly appreciated.

• If Blender is crashing repeatably, it sounds like a bug; see this question for information about reporting them. – catlover2 Jun 27 '15 at 4:45
• Also, it would be most helpful if you would post at least a screenshot of your modifier panel or perhaps your .blend file, since not much can be assumed from your screenshot. – catlover2 Jun 27 '15 at 4:47
• It did not crash for me (with 2.74); however, I did notice some other problems that might be helpful to know about. Hammer_cut had an unused Boolean modifier applied to it, which was causing the Boolean modifier on Stock to fail. The Stock mesh had several non-manifold areas, which you can select with Ctrl + Alt + Shift + M, although I think none of them affect the problem area. – catlover2 Jun 28 '15 at 9:06