I have a problem downloading archives or files from my server using CPanel File manager,when i press the download. You can find a toolbar with all the basic functions for managing files like create a new folder, delete a file, upload/download and much more. Feel free change the default directory in Settings menu. In this guideline, you will find detailed instructions how to manage (add, delete, view. Unchecking that allowed the file to be downloaded normally. I ask as I recall having a problem with not being able to download a full system backup from an account, the problem was that in: cPanel > Optimize Website, the 'Compress all content' was checked. Click to expand.Do you mean if you click a single file and then click download it does nothing? Or when you click a Full System Backup for example, to download that it does nothing? Or both of course.