for /f "usebackq tokens=1,2 delims=?:" %%i in (`"mountvol | more +22"`) do (
if "%%i"=="\\" set vguid=%%j
if /i "%%j"=="!odd!" set vg=!vguid!
)
echo !vg!
for %%i in (c,d,e,f,g,h,i,j,k,l,z) do (if exist %%i:\zid set dl=%%i)
if /i "%dl%"=="z" goto :end
setlocal enabledelayedexpansion
for /f "usebackq tokens=1,2 delims=?: " %%i in (`"mountvol | more +22"`) do (
if /i "%%i"=="\\" set vguid=%%j
if /i "%%i"=="%dl%" set vg=\\?!vguid!
)