Windows 7 - Cant un-share a folder on Home Network

I was referred to the networking forum with my problem (already posted in the "take ownership shortcut" thread) I had a folder full of holiday videos that I had enabled sharing in my home network (it was a sub folder on a drive). After running out of space I moved the contents of the folder to a bigger drive, but was left with the folder that I cant un-share, delete or re-name. I've tried two programs reccomended on this forum (take-ownership and unlocker 1.9.1), I have also tried manually going into properties - security - sharing , just keep getting "access denied" warnings. Unlocker 1.9.1 gave me a warning "no removal handle" and take-ownership seemed to work but had absolutley no effect on the folder at all. Anybody come across this before?