I want to be able to install from 6 different XP-Sources plus Vista. Copying of XP-Sources was successful, but when I boot from USB-HDD the menu only shows 3 Sources although there are 6 in the boot.ini. I used Multiboot 10 and formatted a single Partition in NTFS using the HP-Tool. Boot.ini: [Boot Loader] Timeout=10 Default=multi(0)disk(0)rdisk(1)partition(1)\WINDOWS [Operating Systems] multi(0)disk(0)rdisk(1)partition(1)\WINDOWS="2. and 3. Continue with GUI Mode Setup Windows XP + Start XP from HD 1" /FASTDETECT multi(0)disk(0)rdisk(2)partition(1)\WINDOWS="Continue GUI Setup + Start XP from HD 2, use if installing on HD2" /FASTDETECT c:\grldr="4. Start GRUB4DOS Menu - DOS FPY IMAGES + Linux + XP Rec Cons + Vista" C:\btsec\PELDR.bs="5. BartPE - MINI XP" C:\btsec\XPS01.bs="01 TXT Mode Setup XPHomeOEM, Never unplug USB-Drive" C:\btsec\XAT01.bs="01 Attended Setup XPHomeOEM, Never unplug USB-Drive" C:\btsec\XPS02.bs="02 TXT Mode Setup XPHomeRetail, Never unplug USB-Drive" C:\btsec\XAT02.bs="02 Attended Setup XPHomeRetail, Never unplug USB-Drive" C:\btsec\XPS03.bs="03 TXT Mode Setup XPProOEM, Never unplug USB-Drive" C:\btsec\XAT03.bs="03 Attended Setup XPProOEM, Never unplug USB-Drive" C:\btsec\XPS04.bs="04 TXT Mode Setup XPProRetail, Never unplug USB-Drive" C:\btsec\XAT04.bs="04 Attended Setup XPProRetail, Never unplug USB-Drive" C:\btsec\XPS05.bs="05 TXT Mode Setup XPCorp, Never unplug USB-Drive" C:\btsec\XAT05.bs="05 Attended Setup XPCorp, Never unplug USB-Drive" C:\btsec\XPS06.bs="06 TXT Mode Setup XPMCE, Never unplug USB-Drive" C:\btsec\XAT06.bs="06 Attended Setup XPMCE, Never unplug USB-Drive"