From: pmokover@gmail.com   
      
   How can I test in a batch file whether an external USB drive does not exist   
   because: 1) it’s not currently connected to the PC or 2) it is connected but   
   it’s locked by a program such as BitLocker (in Windows 10)?   
      
   If I use the usual “if not exist d:” line it will say the drive does not   
   exist in either case above.  How can I distinguish between 1) the drive is not   
   connected or 2) the drive is connected but it’s locked?   
      
   FYI, when a drive is locked by Bitlocker it will still be listed in Windows   
   Explorer however “if exist” will say that it does not exist.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)