Explorer keeps crashing

Has anyone else experienced this? Sometimes a file either in my incomplete folder or one that I have already downloaded causes windows explorer to crash. What I mean is this: when I open WE and navigate to my save folder it opens very briefly then WE closes. I have not found a way to isolate which file is causing the problem so I generally end up deleting files until the problem is solved. To do this I open a DOS window and delete the files with DOS commands. I have found no other way of doing it. Any help here would be great. I am almost pulling my hair out!!!

I forgot to add that it always seems to be an avi file that is the culprit.