Cannot Take Ownership/cannot Change Permissions For Windows Folder

All this started when I just wanted to change the way the clock looked to a custom one.

I go to the Windows Sidebar folder to locate the Gadgets folder for the clocks, and I try to make backups of a few of the files in the clocks folder by moving some of them to a new folder I created on the desktop. I cannot move them, access denied. I try taking ownership of the folder, cannot do it, access denied. I try changing the permissions, cannot do it, the boxes you can tick are grayed out. Long story short, I tried backing out of all the folders, trying to take ownership and change permissions all the way back to the Program Files folder itself to no avail. It seems if it is a default Windows folder I cannot mess with it in anyway; this also seems to be the case with my McAfee folder, but something that is less of a risk to change, like my Zune folder, I can change around no problem.

Quick rundown, I am using Windows 7 Ultimate edition, this is my only account for the computer, and it is an admin account. I have tried using several different "Take Ownership" downloads, including the one suggested on this site, but it does not work for the Window folders. "Take Ownership" won't even show up if I right-click on the folder. I know the Take Ownership mod is installed correctly, because it will popup for something that is not a default folder, like my Zune folder. .