Whenever I try to open windows explorer, after about 5 seconds the window freezes up and so does the taskbar, until I restart windows explorer in task manager. This happens every time I open it and now I can't use windows explorer. Also, I think this happened on a day when I took apart my desktop to clean some dust out, and I don't know how, but I was thinking that it could be related to the fact that I took my graphics card out for a bit? I check and I have the latest drivers for my gpu also. Please if you know ANYTHING, please reply.