Can't access 2nd drive over network on Win7 machine

3 machines involved.
Windows 7 64-bit w/2 hard drives (Machine A)
Windows 7 32-bit notebook (Machine B)
Windows XP, SP3 w/2 hard drives (Machine C)

All machines can access each other's C drive.
Both Win7 machines (A & B) can access 2nd drive on XP machine (C).
Neither B or C can access 2nd drive on Win7 machine (A).
Message: ...drive is not accessable. You may not have permission to use the network resource.
Followed a similar thread and checked all permissions locations.
All permissions show shared in every way possible.
Had no success setting up Homegroup to do it, so removed it.

Tried with each of the suggestions and turned off Windows Firewall for network but same result. Repeating, it's only the 2nd drive that can't be accessed. The main drive is seen by all other computers.

Have taken screen shots of the Advanced Sharing dialog boxes but can't see how to attach them. The 'click here' for the instructions doesn't work. If you can tell me how to attach them I'll send them.
The sharing options for different network profiles are as follows:
Turn on Network Discovery
Turn on File and Printer Sharing
Turn on Sharing so anyone....etc
Media streaming is off
Password protection is off
Allow Window to manage homegroup connection (Don't have homegroups set up)

kegobeer (love this handle)
Figured out how to upload the attachment. Here are my screen shots in a pdf file. If there is something else you want to look at tell me how to find it.

AZRoadRunner said:

kegobeer (love this handle)
Figured out how to upload the attachment. Here are my screen shots in a pdf file. If there is something else you want to look at tell me how to find it.

Hi

Just to check; you have the same sharing permissions set on the 2nd drive as you do on the main drive?

Regards
UKMedia

I guess I don't know for sure. I will compare them and post again.

I checked all 4 dialog boxes I included in the previous attachment. I saw only one difference. On the Advanced Security Setting for the main drive there was an entry for "Everyone". I attempted to add that one to the Data Drive but I got an error and it would not accept my addition. I also attempted to Modify and give Full Control to Authenticated Users but Access was Denied.