The Recycle Bin is \$Recycle.bin in the root of each drive/partition. To see it you need to expose hidden and system files via Folder Options:
Open Control Panel then Folder Options and click on the View tab.
Select "Show hidden files and folders"
Uncheck "Hide extensions for known file types"
Uncheck "Hide protected operating system files (recommended)" (click Yes when prompted)
Click Apply and OK
LockHunter should be able to see it once this is done. Perhaps you could move it to a flash drive or even a floppy drive if you have one, then format the drive?
Also, if you can get it out of the Recycle Bin, then use LockHunter again to delete it, but before doing so, go into Properties for the Recycle Bin and check Don't move files to the Recycle Bin.
Then when LockHunter deletes it the next time it will really go away????
Uncheck Don't move files to the Recycle Bin when done.