From Windows Vista onwards file operations in explorer have been constantly been dodgy for me ... for many years, on different hardware. And Windows 8 seems the worst yet.
I just tried to copy some files (4580 to be exact) from my documents another folder and Windows just sat there displaying a "Caclulating File Copy Time" dialog for 10 minutes. I eventually gave up, opened a cmd prompt and type "copy * \path\to\put. Cmd did the copy in less than 20 seconds.
Yesterday I needed to delete about 500 files. Selecting all files in explorer then pressing Shift+Delete (to bypass the recycle bin), Windows stood on a "Preparing to Delete Files" dialog for 20 seconds. I pressed cancel, opened a cmd prompt and typed "delete *". It took 1 second to do the delete that way.
On my home media PC with Windows 8, every time I open my downloads folder (which has maybe 100 files), I have to wait 5-10 seconds while explorer considers showing me a list of files/folders (I have detail view on with filename, size, and date shown). If I navigate to a subfolder (a movie folder) and back up again, I have to wait another 5-10 seconds all over again. It's so damn annoying.
I think a lot of these slow problems are related to MS trying to make some digital files uncopyable (DRM causes slow file copies, rename, or deletes), which given the problems I had working with explorer since Vista was released, seems like a very big mistake by MS.
What are your thoughts/experience with slow explorer operations on Vista onwards?