1. Install the external hard drive as a in your working desktop system.
(As a slave disk or blah blah use BIOS to detect hard disk and check the BIOS configuration before you begin because in some BIOS some Ports and Slots disable by default if they are not in used)
2. Format the drive. I just did a quick ntfs format, doesn’t seem to matter.
3. Insert your windows CD/ DVD in the drive, and exit when it pops up asking what you want to do.( install windows XP, upgrade blah blah… just close it . (Auto run)
4. Go to "My Computer" and look at the drive letters of the CD-ROM/DVD ROM/DVD Writer containing the XP disk, and also the drive letter of the hard drive you are installing to.
5. Assuming the hard drive is "E" and the XP cd is in "F:", go to the run command and type (or cut and paste note : please change the drive letter as in your computer after paste )
F:\I386\winnt32.exe /syspart:E: /tempdrive:E: /makelocalsource /noreboot
6. Setup will begin and ask you if you want to upgrade or full install, make sure it is FULL INSTALL. It will then ask you for a few more things including the Serial key.
7. When it goes back to your desktop, turn off your PC and remove the external hard drive. It is now ready for install in the new system. It will simply continue to install windows from this point.
8. Boot up the hard drive as your primary boot device in other PC which you want to install windows
Set up will begin from the hard and you don’t need a CD/DVD drive or bootable CD/DVD
