Why do I not have full admin privileges Windows 10 when I am logged on as the administrator and the owner?

I will start off quickly by saying I have used Microsoft products for the last 40 years and in that time nothing has infuriated me more than tweaking windows to get it to do exactly what I wanted to do and that means I need full control over my system. With that much experience the only things I don't know about are the really really technical stuff but when I make a change or delete a file rename a file or add files I know exactly what I'm doing.

So today I had to install new .inf files for my new AOC monitor. I did the search thing after I pulled up the device manager and it did not find the file where I wanted in the downloads folder so I tried to copy them to the driver folder in system32. So I tried to copy them and it said permission not allowed. I cannot understand how as the administrator I do not have automatic administrative / admin / highest power permissions to do this. So I went into the properties tab on the driver's folder and it said read only. So I unchecked the box that said read only and try to apply that to all subfolders and files and said I do not have permission to do that. Why? And then I went in as suggested on the other queries on a Google search that said you have to edit who gets permission but why should I have to do that if I am the administrator already. On those check boxes under abilities I want full control all the way down of every single file and folder in my computer since I am the owner and the administrator but it wouldn't let me do that. And the options that I needed to change were all grayed out. And this is the kind of thing that I have threatened many times to get an Apple computer because no other time in my life do I swear so much when anything I need to do tweaking windows windows tries to stop me and I hate it and I came this close to smashing my monitor after 1 hour of simply trying to update the driver to my monitor. I finally found another way around it which I should have done first but it didn't work, was to simply manually write down the path where the .inf folders were and it worked, even though my video adapter is so out of date it didn't make a difference.

So if one of you geniuses out there can please tell me how I can get full control over every part of my computer without having to get permission as administrator when I am already the administrator. This is maddening and infuriating and the only thing I can think of is that Microsoft doesn't want the users to have full control because they may screw something up but not all of us are that stupid. Any suggestions, I'm listening but again what I need to do the options that other people cite are not available they are greyed out, or the tabs or the links that they cite just don't exist. So one more question: is there a higher authority than administrator? Because according to a Google search it says admin has the highest privileges that is not the case and that is why I really really despise Windows sometimes. I bet Apple users don't have this much trouble and I bet Linux users don't have this much trouble but if it wasn't for Microsoft office I would throw this thing in the harbor. Thank you I'm done with my rambling now. Will be monitoring this post very closely.

All this on optiplex 380 dual core 2.93 GHz using fresh install Windows 10 with no updates. I have a serious problem with the updates because usually when I do them it stops something from working and it takes more memory. But if I need to do the update to get full permission that I will do it, but I'm still trying to understand how there is there is a privilege higher than administrator and I'd like to know how to get to it because I shouldn't even have to ask this question if the administrator is the highest privilege.