SET USBDRIVE=
SET TAGFILE=\WIN_NT.BT

:: First Limited Range to Prevent Windows No Drive Alert due to Cardreader
:: For case of Repair Install when Drive not found, than Extended Range and
:: Windows No Drive Alert - Press 4x Continue for Cardreader Drives

FOR %%h IN (U D M N O P Q R S T V W X Y) DO IF EXIST "%%h:%TAGFILE%" SET USBDRIVE=%%h:

if "%USBDRIVE%" == "" (
   FOR %%h IN (C E F G H I J K L) DO IF EXIST "%%h:%TAGFILE%" SET USBDRIVE=%%h:
)

ren %USBDRIVE%\txtsetup.bak txtsetup.sif
ren %USBDRIVE%\WIN_NT.BT $WIN_NT$.~BT
ren %USBDRIVE%\WIN_NT.LS $WIN_NT$.~LS