Cannot Delete Orphaned HomeGroup Shares In Windows 7?

I have three Windows 7 computers, one a laptop and the other two are desktops. The laptop and one desktop are Win 7 Prof. and the remaining desktop is Win 7 Ultimate. All computers are part of my HomeGroup and share is set up for all default libraries, My Documents, My Pictures, My Music and My Videos. On the Win 7 desktop (let's call this computer 1) I had a 4 disk raid array partitioned as C: and D:. I had the system on C: and used D: for data. D: was beginning to be overpopulated. I tried several ways to shirk C: and then expand D: but ran into problems exacerbated by the raid array. So, I decided to copy everything on D: to C:, delete D: and then expand C: for the entire array. With the help of tutorials on this site, I have resolved all the problems this caused on computer 1 with the user folders and can now share everything through the HomeGroup in Win 7 Explorer on all three computers. However, eliminating drive D: on computer 1 and relocating My Documents, My Pictures, My Videos and Downloads have left the HomeGroup on both of the other computers with two orphaned shares. One named My Documents and the other downloads.

On computers 2 and 3 when I click on the shares in Win 7 Explorer, I get network error Windows cannot access \computer1downloads and Windows cannot access \computer1My Documents; Error code 0x80070043, The network name cannot be found. On computers 2 and 3 when I run net share in regular Win 7 I see an orphaned share on D: Share name D$; Resource D:, Remark Default share and what should be the current user share for C: Share Name C$; resource C: and remark Default Share. If I delete the D: share with net share, the share remains in the HomeGroup on computers 2 and 3. One method for resolving this involved using the net share command in safe mode with networking. I am unable to run that command in safe mode with networking due to a dependency error, code 1068 caused by the Security Accounts Manager that will not run in safe mode, error code 1084. On computers 2 and 3 I have looked inomputerHKEY_LOCAL_MACHINESystemCurrentControlSetservicesLanmanServerShares and see a share for a printer, one for pint$ print spooler, another for prnproc$ print spooler and finally Users with Path=C:Users. The latter is where I now have all of the shared files stored on C:UsersComputer1My Documents etc. That's a lot of information (I probably left something very important out but I tried to give you what I thought was material) and here is my question; how do I get rid of the two shares in the HomeGroups on computers 2 and 3 that show shares named My Documents and downloads????