Installing windows xp using USB flash drive

I encountered a new system with windows vista installed but my boss wants it to be on windows XP, the problem is it doesn't have a floppy drive and a cdrom. So installing windows xp is by using flash drive, external usb cdrom drive, network boot or having a flash dish bootable with windows xp on it.

Solution:

Search and download a third part software called PetoUSB!
Extract and Run PETOUSB program and see like this..









and check the settings oultline as follows:
















* Make sure to put the Right Source path (e.g. CD Drive letter) and tick Enable File Copy (no overwrite)

Walahh... Boot order from your BIOS must be on USB Flash