Usually a right click "Arrange by" choice or if in Details view, click on the column you want to sort by.
I need to do a pc tune-up program. One of the things it's done on it's on is to rearrange how I view files. It's showing them in order of latest use. I need them in alphabetical order. Simple? You would think so, but it's not easy to find in the help menu. Where did they hide the instructions?