Hi,

While it may be true that something in Windows is corrupted and in need of some serious repair, File Explorer may be getting bogged down and hanging up especially during occasions when you are attempting to navigate a folder listing very quickly using first-letter navigation.  This used to happen to me on older Windows 7 machines. I’d be in a large list of hundreds of files, and if I moved too quickly using the arrows or first-letter navigation, Windows Explorer would crash and go unresponsive. The solution? Turn off all thumbnails, ditch the preview pane and anything to do with preview handling. Not only did Windows Explorer perform much better with no hangs, I didn’t have to deal with those pesky thumbs.db files which were a pain in the butt whenever I’d try to delete unwanted folders. I’d be willing to bet that doing something similar to what I just described may help in File Explorer in Windows 10, too. Just a hunch. Hope it helps.

Tom