Копирование папки с флешки на компьютер при неизвестной букве диска у флешки

@echo off
set disf_f=
for /f %%a in ('"wmic path Win32_LogicalDisk where 'drivetype="2" and mediatype=null' get name|more +1"') do if not defined disf_f set "disf_f=%%a"
if exist "%disf_f%" echo "%disf_f%"
pause

@echo off
set disf_f=
for /f %%a in ('"wmic path Win32_LogicalDisk where 'drivetype="2" and mediatype=null' get name|more +1"') do if not defined disf_f set "disf_f=%%a"
if exist "%disf_f%" echo "%disf_f%"
copy "MyProgram" "C:\Program Files"
pause

...
if exist "%disf_f%" copy "%disf_f%\MyProgram\1.exe" ...

SET FLASHNAME=imayfleshki
 
REM Определяем букву нашей флэшки по имени %FLASHNAME%
For /F "tokens=2 delims==" %%i in ('wmic logicaldisk where ^(DriveType^=2 and MediaType^=Null and VolumeName^="%FLASHNAME%"^) get DeviceID /value') DO SET USB=%%i
If not defined USB exit

@echo off
set disf_f=
for /f %%a in ('"wmic path Win32_LogicalDisk where 'drivetype="2" and mediatype=null' get name|more +1"') do if not defined disf_f set "disf_f=%%a"
if exist "%disf_f%" copy "%disf_f%"
copy "otcheti" "C:\Program Files\"
pause

if exist "%disf_f%" copy "%disf_f%\otcheti\*" "C:\Program Files"

@echo off
set disf_f=
for /f %%a in ('"wmic path Win32_LogicalDisk where 'drivetype="2" and mediatype=null' get name|more +1"') do if not defined disf_f set "disf_f=%%a"
if exist "%disf_f%" copy "%disf_f%\1с\*" "C:\Program Files\1с\"