From: jj4public@vfemail.net   
      
   On Fri, 5 Jun 2020 19:04:34 -0700 (PDT), Peter wrote:   
   > How can I test in a batch file whether an external USB drive does not   
   > exist because: 1) itÿs not currently connected to the PC or 2) it is   
   > connected but itÿs 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 itÿs 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.   
      
   Use this.   
      
   @echo off   
   setlocal   
   set drive=z   
   if not exist %drive%:\ (   
     echo Drive is not found/connected, or has no drive letter assigned.   
     pause   
     goto :eof   
   )   
   pushd %drive%:\   
   if errorlevel 1 (   
     rem the above PUSHD command will show the error message whether   
     rem the drive is bitlocker-locked, or is inaccessible.   
     pause   
     goto :eof   
   )   
   popd   
   echo Drive is connected and accessible.   
   pause   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)