Cannot Copy File

[Casterina]

I'm using Windows XP Professional and I'm backing up all my files to my external HDD so I can install Windows 7, all files and folders are transferred except from a folder which gives me this error,

 

[Casterina]

Tried taking ownership or installing Unlocker?

BTW this belongs in here : http://forums.overclockers.co.uk/forumdisplay.php?f=9

Sorry for posting in the wrong section, I can't seem to take ownership of the folder as I don't have the Security tab and Unlocker doesn't work,

 

[Casterina]

Are you admin?

Reboot to Safe mode and choose Admin account.

I'm the admin and there's only one account on the computer

 

[Casterina]

The folder and file is already has Admin ownership but I have taking ownership again but still getting the error