|AppData refers to a folder, not a file (the % symbols are not part of the folder-name, they are just generic path identifiers). |
I'd be very surprised if it doesn't exist as most applications rely on it & install files in it, not just Adobe & Java.
It's located here on Vista & Win7:
It is visible when "show hidden files" is enabled.
I don't know if 64-bit Windows is any different though in that repect as mine is 32-bit.