Windows File-Explorer Working Slowly

Hi to all! I’ve had several problems with my Windows Explorer. The opening or saving a file through several software is not working fast or sometimes not at all. Also the opening of big files (over 200mb) especially .exe files from the explorer freezes the whole explorer. For example: I want to download a file in Firefox from a web page. I click on the file ( coolfile.txt ) with my right mouse button and select “Save as…” then I choose the saving location, which takes a long time just to wonder around in my directories. I’ve found the place where to save the coolfile.txt. I click on “Save”. After releasing the mouse button whole Firefox freezes. I am in a big need of help! If you know something about this please tell me! Windows XP Home: SP2 Firefox 2.0.0.6

Firefox 2.0.0.6

Outdated, update!