Solved Delete Windows.old Folder

How do I delete the Windows.old folder? It keeps asking me to be the administrator. I am logged in as the Admin.

Thanks for the help in advance.

Hi,
I ask this question before until I found my own answer. I delete mine via the cleaning of OS, the procedure is:

1. after logging in as administrator, open up the explorer.
2. select the C: and then right click the c: and open up the c: properties
3. Under General label select Disk Clean UP
4. select system clean-up
5. You find the windows.old and other obsolete system files there you can delete them safely.

There's a nice tutorial on this topic:

http://www.eightforums.com/tutorials/2527-windows-old-folder-delete-windows-8-a.html

I found booting into safe mode to work.