Folder permissions problem

Hello

I have been trying to access a folder to view and change the contents of it, but i'm having some trouble. When I open the folder i'm trying to view the contents of it tells me that the folder is empty, which I'm pretty sure is not empty I just don't have permission to view the contents of it. I have tried going to "view" and turning on hidden folders but that does nothing, and I've tried right-clicking it to open the properties of the folder and adding myself to the list of people who have permissions to read & write to the folder but it still says empty. The folder that I am trying to view is the .Minecraft folder so I can change certain aspects of the game by editing the JSON files but I cannot view what's in the folder. I don't see a folder anywhere else on my computer by that name, except a mods folder but that is not the main game folder and editing this makes no changes to the game.

Below is a YouTube video that I made in the hope that someone would know:





If anybody can tell me how to fix this I would really appreciate any advice you have.

Thanks in advance

John.