Thanks, virtual CD-ROM survive PNP.Install Windows XP from ISO on UFD to SATA hard disk by karyonix http://reboot.pro/13967/ I'm using title 1 Start Windows XP setup - firadisk.img - /XP.iso map --mem (md)0x800+4 (99) map /firadisk.img (fd0) map /firadisk.img (fd1) map /XP.iso (0xff) checkrange 0x80 read 0x8280 && map (hd0) (hd1) checkrange 0x80 read 0x8280 && map (hd1) (hd0) map --hook write (99) [FiraDisk]\nStartOptions=cdrom,vmem=find:/XP.iso;floppy,vmem=find:/firadisk.img;\n\0 chainloader (0xff) title 2 Continue Windows XP setup - firadisk.img /XP.iso map --mem (md)0x800+4 (99) checkrange 0x80 read 0x8280 && map (hd0) (hd1) checkrange 0x80 read 0x8280 && map (hd1) (hd0) map --hook write (99) [FiraDisk]\nStartOptions=cdrom,vmem=find:/XP.iso;\n\0 chainloader (hd0)+1