Before installing, you must format the disk portable .It is better to use a free program HP USB Disk Storage Format Tool.After installation, go to "Start - All Programs - HP Company".In the list of devices, locate and select the USB-device and format it in FAT.After formatting, copy on a portable drive boot files Windows.% systemdrive% / boot.ini,% systemdrive% / ntldr, and% systemdrive%: / ntdetect
Now you need to configure the BIOS.To enter the
BIOS when you start your computer, you must press F2 or DEL.The key depends on the version of your BIOS.When you start your computer, the screen says which key to press to enter the BIOS.In the menu "Advanced BIOS Features", select "Boot Device Select".In this menu, you need to click on the USB drive as a boot device "Boot Device Priority".To exit and save press F10.Then the computer will restart.If your BIOS, you will see the menu item "USB Mass Storage Reset Delay", set this value to the maximum.
To install the operating system on a portable drive utility is used PE Builder.To install you will need to install drive with the operating system Windows.The hard disk is, create a new folder where you copied the contents of the boot drive and from windows.Open a command prompt: "Start - Run - cmd".Now copy the service pack.Enter the command "C: /sp2/xpsp2.exe -u -x: c: / sp2 / sp2".Then run the installation file, and select the installation path as a portable disk , to which you want to install the operating system.