Windows 10 can't find the Workgroup but says the drive is shared

Not saying you shouldn't use Blackbird Privacy Suite, to each his own ...
I took a minute to look at the Blackbird Privacy Suite site and it can block/turn off stuff windows needs for networking like some services, ipv6, etc. Not sure what settings you've applied with it, but I would undo them before I wasted time on troubleshooting Win10 networking itself.

Hey loninappleton,
Yea, the netbios over tcp/ip issue can be very difficult to fix. If the adapter settings show it as default or enabled and ipconfig /all shows it as disabled ... you can check the registry to see if what it shows for NetbiosOptions. IF the registry shows NetbiosOptions is 0 or 1 ... then it usually requires an in-place upgrade/repair or clean install to actually fix it being disabled. Obviously that's your call and you could try to fix it manually, but it's a bit involved.

Note: Valid values for NebiosOptions ... Default is 0 | Enabled is 1 | Disabled is 2

Open PowerShell as Admin and run the following command ...

Get-ChildItem -Recurse -Path HKLM:SYSTEM\CurrentControlSet\Services\NetBT\Parameters\Interfaces | Format-Table -AutoSize

Powershell is another thing I'm trying to get a handle on-- just rudamentary commands. I'm on the list for getting a poershell book at the local library-- just to do the simple things you mention.

K, no problem.

On that, for troubleshooting how can I compare what I have in the working HD with the problem
HD or HDs on the system? I've found the one example of NetBIOS on or off in some of these through ipconfig.

Yea, ipconfig is just an easy way to see what the adapter settings are. It's difficult to compare 2 systems for the netbios issue, as they will have different network adapters, instance ids, etc.

Also, while I think of it, some setting in Win7 or 10 on here has 'diagnostics' turned off. I don't
know how or why-- another Microsoft mystery.

Not sure on that, sorry.

If you want to try using the following PowerShell script ... On the PC where ipconfig /all shows Netbios as disabled. Do the following and I'll take a look to see what/if anything jumps out at me.

Note: IF your not comfortable doing the following, then don't :)

1. Click on Start > Scroll Down to Windows PowerShell and Click on it to Expand > Right Click on the 1st entry > Windows PowerShell > Run as Administrator
2. The PowerShell Window will open.
3. Copy/Paste the following into the PowerShell Window, make sure you hit enter after the last line.
4. The following script makes NO changes to your PC.
5. It reveals NO personal information, just your PC name.
6. It creates a .txt file on your Desktop (it assumes your Desktop Folder has not been moved)
7. Upload the .txt file in your post.

$(
write-output "CHECKING LINKAGE/INTERFACES $($env:computername) @ $(get-date -format g)"
write-output "==============="
write-output "ALL ADAPTERS"
write-output "==============="
Get-NetAdapter -IncludeHidden -Name "*" | Format-Table -AutoSize -Property "Name", "InterfaceDescription", "InstanceID"
write-output "==============="
write-output "NETBT INTERFACES"
write-output "==============="
Get-ChildItem -Recurse -Path HKLM:SYSTEM\CurrentControlSet\Services\NetBT\Parameters\Interfaces | Format-Table -AutoSize
write-output "==============="
write-output "LANMAN SERVER LINKAGE"
write-output "==============="
Get-ItemProperty -Path HKLM:SYSTEM\CurrentControlSet\Services\LanmanServer\Linkage | Format-List -Property "Export","Bind","Route"
write-output "==============="
write-output "LANMAN WORKSTATION LINKAGE"
write-output "==============="
Get-ItemProperty -Path HKLM:SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Linkage | Format-List -Property "Export","Bind","Route"
write-output "==============="
write-output "NETBIOS LINKAGE"
write-output "==============="
Get-ItemProperty -Path HKLM:SYSTEM\CurrentControlSet\Services\NetBIOS\Linkage | Format-List -Property "Export","Bind","Route"
write-output "==============="
write-output "NETBT LINKAGE"
write-output "==============="
Get-ItemProperty -Path HKLM:SYSTEM\CurrentControlSet\Services\NetBT\Linkage | Format-List -Property "Export","Bind","Route"
write-output "==============="
write-output "TCPIP4 LINKAGE"
write-output "==============="
Get-ItemProperty -Path HKLM:SYSTEM\CurrentControlSet\Services\Tcpip\Linkage | Format-List -Property "Export","Bind","Route"
write-output "==============="
write-output "TCPIP6 LINKAGE"
write-output "==============="
Get-ItemProperty -Path HKLM:SYSTEM\CurrentControlSet\Services\Tcpip6\Linkage | Format-List -Property "Export","Bind","Route"
) > "$($env:userprofile)\Desktop\$env:computername-LINKAGE-INTERFACES.txt"

@Ioninappleton: haven't seen much (very little!) discussion of Blackbird here on the forums. Folks here are more familiar with tools like O&O Shutup10. If you encounter problems with Blackbird, and aren't completely committed to that offering (which I know nothing about), you might want to try the other aforementioned option as a possible alternative.
HTH,
--Ed--