Unable to open hard drives

I have a problem. Whenever i try to open one of my hard drives through my computer they do not open, instead an open with box comes up instead, hence the only ways to open my hard drives is by using the address bar or the explore function.

Also my explorer.exe seems to be having some problems - it sometimes randomly crashes. I believe that the two problems are related as they happened at same times. Thanks.

Any help would be great.