Why (hd2)? How many internal disks do you have? Which one are you installing to? Describe with details. When you see that error can you press shift+F10 to get command prompt and look at presetup.log in \windows\system32\? type presetup.log Post the contents of that file or at least the last few lines. Thanks ilko_t for your replay ! Sorry for my bad in english ! Why (hd2)? How many internal disks do you have? Which one are you installing to? Describe with details. I have One internal Disk If i do not use PLoP boot manager, the HDD is (hd1) If i use PLoP boot manager, the HDD is (hd2) I know that because i used Paragon Partition Manager to detect . And it show me the HDD is (hdd 2) and my USB-HDD is (hdd 0) If i used Plop Boot Manager and i still used map (hd0) (hd1) map (hd1) (hd0) so grub4dos error: Select disk does not exist ... so i used map (hd0) (hd2) map (hd2) (hd0) and the Text-Mode is completed Here is my presetup.log presetup fixDrive.USB setup SystemDrive C: searching disk image search ISO file "C:\Inst\XP_RAM.ISO" search ISO file "D:\Inst\XP_RAM.ISO" search ISO file "E:\Inst\XP_RAM.ISO" search ISO file "F:\Inst\XP_RAM.ISO" search ISO file "G:\Inst\XP_RAM.ISO" search ISO file "H:\Inst\XP_RAM.ISO" search ISO file "I:\Inst\XP_RAM.ISO" search ISO file "J:\Inst\XP_RAM.ISO" search ISO file "K:\Inst\XP_RAM.ISO" search ISO file "L:\Inst\XP_RAM.ISO" search ISO file "M:\Inst\XP_RAM.ISO" search ISO file "N:\Inst\XP_RAM.ISO" search ISO file "O:\Inst\XP_RAM.ISO" search ISO file "P:\Inst\XP_RAM.ISO" search ISO file "Q:\Inst\XP_RAM.ISO" search ISO file "R:\Inst\XP_RAM.ISO" search ISO file "S:\Inst\XP_RAM.ISO" search ISO file "T:\Inst\XP_RAM.ISO" search ISO file "U:\Inst\XP_RAM.ISO" search ISO file "V:\Inst\XP_RAM.ISO" search ISO file "W:\Inst\XP_RAM.ISO" search ISO file "X:\Inst\XP_RAM.ISO" search ISO file "Y:\Inst\XP_RAM.ISO" Error: no ISO file found Volume in drive C has no label. Volume Serial Number is DC6C-7774 Directory of C:\WINDOWS\system32 09/05/2009 01:46 PM 6,144 setup.exe 08/04/2004 12:56 AM 23,040 setuporg.exe 2 File(s) 29,184 bytes 0 Dir(s) 20,254,183,424 bytes free run setup CmdLine: setup -newsetup - Mon 04/12/2010 0:14:40.17 PS: I used diskpart => and list volume=>i see my USB-HDD isn't assigned with any drive letter ...why ?