Can't delete file in download folder A few days ago, I downloaded a file of 1.9gb to my phone using the utorrent app. Utorrent downloaded the file automatically to my internal storage, and since I only had 2 gigs of free space, the download did stop after a while. when I saw it I deleted some files, and the download went on. When the download was finished, I decided to take a look in my folder but the folder which did have the name of the file that I downloaded was empty. So I checked my internal storage, but it was almost full, so the file must be somewhere on my device. 

Furthermore can't I delete that empty folder. By the way: my phone (Samsung Galaxy S4) is not rooted.

How can I find that file, and how can I delete that folder?
You could try SD Maid, and see if it can find the file. It has a feature that lets you search for the BIGGEST files. If that file was cached somewhere before it was put into the correct folder, chances are SD Maid might be able to find it.

I can't remember though if you need the Pro version to use the feature, but do check it out.