Are you refering to the warning thats says:
"You don't currently have permission to access this folder.
Click continue to get access to this folder."
On click:
"You have been denied permision to access this folder.
To gain access to this folder you will need to use the security tab."
And then, while in security tab you can't actually apply any chnages?
Or, are you refering to UAC, which can be turned off?