Install Windows From a USB Flash Drive - WinToFlash | Portable USB Pen Drive Applications
Install Windows from USB. WinToFlash, created by Novicorp, is a tool that can be used to copy your existing Windows XP, 2003, 2008, WinPE, Vista, or Windows 7 CD/DVD Install Disk – Setup Disk to a USB Flash Drive. Upon completion, you should be able to Install Windows using a Flash Drive. Very useful if you own a Netbook or Notebook PC that can boot from USB but does not have an optical drive
Get it here.
This can be done other ways but if this works, why bother rolling your own.
Install Windows from USB. WinToFlash, created by Novicorp, is a tool that can be used to copy your existing Windows XP, 2003, 2008, WinPE, Vista, or Windows 7 CD/DVD Install Disk – Setup Disk to a USB Flash Drive. Upon completion, you should be able to Install Windows using a Flash Drive. Very useful if you own a Netbook or Notebook PC that can boot from USB but does not have an optical drive
Get it here.