I am reposting the information you need below:
One of my favorite freeware apps is Unlocker. It's a simple solution to
a very annoying problem: Getting rid of files Windows won't let you
delete for one reason or the other.
If you do not have Unlocker, get it here:
http://ccollomb.free.fr/unlocker/
READ THIS: How to make Unlocker work on Windows Vista?
- How to make Unlocker work on Windows Vista? You need to deactivate UAC
globally for the whole system or locally just for Unlocker. Globally, go
to "Control Panel" then "User Accounts" then again "User Accounts" then
"Turn User Account Control" and set it to Off, then restart your
computer. Locally go to the Unlocker install directory (usually
C:/Program Files/Unlocker), right-click Unlocker.exe, select Properties,
and on the "Compatibility" tab, under "Priviledge Level" enable "Run
this program as administrator". Click "allow" everytime you will get the
UAC prompt to ask if you want to run Unlocker. Thanks to Mike Cerminara
for his help.