My windows 7 computer has crashed while using Windows Explorer - or most any file searches - since I bought it in late 2009. It has all the upgrades and modifications from Microsoft and Dell, and continues to crash. If I open Windows Explorer, a Browser or any other program with a "File/open" capability, merely while scrolling down the directory listing, it will crash - and worse, it will often take all the other opened programs on my screen with it. I have learned that re-trying two or three times somehow solves the program and I can get to what I'm looking for. Also, I have an old graphics program (Paint Shop Pro 5.1) which seems immune to this program. I'm running it under full compatibility mode, and I don't have this problem with it.
I have contacted Microsoft so many times - to no avail - that I finally dumped the computer and bought an Apple. But we all know that Apple has it's own problems, so I jump over to the Win 7 machine occasionally. So I have the two computer sitting here side-by-side. Like any strangers, they don't speak to each other, and I'm the third party who needs the friendship of both, individually. I have pretty much decided, however, this Windows 7 model will be my last PC unless someone totally brilliant comes up with a "why this is happening" saving grace. Best to all!