Recently, I upgraded to the new Norton Back antivirus and windows 7 started to show me a msg saying that my “System Restore Drive G” is out of space.
The system restore drive is only 99mb and I noticed a folder N360_backup that was left there by Norton Antiviurs 360. When I tried to delete I got the message that I do not have sufficient rights to delete.
To get around this it was a permission problem you need to:
right click on the folder
click Security Tab
click edit to edit the permissions to full access apply etc.. then you should be able to delete the N360_backup folder