Admin is not God. Even the admin accounts must obey file, folder and device permissions. The drive is NTFS so you may get messages like all the above.
I see Everyone which is OK but I can't find the owner of the root folder. May have missed that.
So if this was mine, I'd just copy the content out, format the drive again which resets all permissions and try again.
I am admin on my laptop. From past 3 weeks, I am having trouble with usb thumb drives. I can create folder in the thumb storage USB, and can copy from the usb. But I cannot copy INTO USB or Delete anything IN USB.
The first error pop up says "You'll need to provide administrator permission to copy to this folder". and there are three option: Continue, Skip, Cancel.
If I click on "Continue", I get another pop-up saying: "You need permission to perform this action". There are 2 options : Try again, Cancel
If I click "Try again", the same pop up appears over and over.
I have done all kind of things. Went to device manager and deleted greyed out USB drives.
Right click on usb drive, click properties > security > advanced > Permissions. It shows everyone has full control under permission.
Some options later are greyed out, since it's a corporate laptop. But I could perform any action of the laptop. its just from last 2-3 weeks USB is behaving into these errors.