Hello Mr. Big, it can't be absolutely unshareable, you can share it, but you cannot share the drive with '$' as the title; you can only save as 'C', 'D', or 'E'.
Follow these steps:-
- Hit the windows logo key on your keyboard and select 'Computer' or 'My Computer' from desktop.
- Next select the drive you want to share and right click that drive and click 'Share'
- Now in the 'Advanced Sharing' option, Check 'Share this folder' box and type a name without the '$' sign and Click OK.
That's it. Write back to me if the problem persists.