The title pretty much describes my issue, I've got a Synology DS413 w/ DSM 4.2-3211 and I'm connecting to it from a Windows 7 Pro SP1 x64 computer. I discovered this when I was doing a backup of my data in preparation for the two Seagate NAS 4Tb drives I just ordered. I deleted a shared folder from the DS413 and found it was still on the list of network locations on the Windows 7 machine.
I've rebooted the DS413, my router, my computer, ipconfig /release, ipconfig /renew, deleted everything and removed/recreated all my volumes on the NAS with no success. I've even deleted all the mapped drives and folders, nada. Just so that I'm clear, this is the list of network locations, items such as other computers, media devices, infrastructure, printers and other devices. At this point I don't have a clue as to what to do and I'm open to ideas as I plan on reusing some of these shared folder names.