For some time I noticed that it took like forever to open my Windows Downloads folder. Even on an i7 32 GB SSD device it took about 10 seconds (!) for me to view the files in my Downloads directory. The slow loading Downloads (or other folder!) folder problem occurs, because, by default, Windows is trying to create thumbnails.
This is how to solve this problem :
Open File Explorer. You can get there by hitting Windows key & E, go to your downloads folder and select properties :
Select General items (or Diverse bestanden in Dutch :-))
Make sure to select the check box below to enable inheritance.
Your downloads folder is now instantly available!