put this line in a .cmd file xcopy.exe %CDROM%\i386 /e /k /h /i /y %SystemRoot%\i386 also these in a .reg file [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup] "SourcePath"="C:\\windows\\" "ServicePackSourcePath"="C:\\windows\\" "Installation Sources"=hex(7):43,00,3A,00,5C,00,57,00,49,00,4E,00,44,00,4F,00,\ 57,00,53,00,5C,00,69,00,33,00,38,00,36,00,00,00,\ 00,00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion] "SourcePath"="C:\\windows\\i386\\"