Explorer.exe crashes and have no idea what to do.

I have a strange problem but it doesn't sound extremly hard to fix. Basically, what happens is, when I open a dir then right click a file to rename it, it maybe let's met rename a file or two, or not even one, then a Dialog which I never seen before this problem comes up saying, Data Execution Prevention, that Windows Explorer needs to close. I go to Close Message, since that is like the only option. Then error reporting comes up for Windows Explorer, I did send the first couple of times, but then now do Don't Send. I tried to look at the log or tech info, but even a computer wiz like me, can't understand greek. It's like all numbers and confusing and no link to a file other then explorer.exe. Then after that, Explorer disappears then returns.

This can be constantly recreated.

 

Thank you so much, I have been always looking for a page like this.

 

A quick fix (if the problem is associated with SP2): edit boot.ini and change 'optin' to 'optout' until you run through Arie's suggestions.