Installing windows with an external dvd burner?

If you already have a Windows 7 installation disc, you can use an external DVD drive to install Windows 7. Plug the external drive into a USB port on your computer, insert the installation disc into the DVD drive, and then begin installing Windows 7.

Not sure why you even posted this, would be easier to just try it. It's not like your room will fall into another dimension if it does not install. If you can boot to the disk, you can install Windows from it.

I have the same problem. The problem is, the disk which is put in the dvd burner is bootable, but is not recognized in the boot menu, which means I see no possibility for my laptop to boot on disc. Also, installing a windows is some other windows brings out many problems that I'm wishing to avoid, I don't need two windows'. I only want to install a new one.

i also wondered if it is possible to boot from win7 dvd (or any other bootable disc) with an external optical drive? (connected via usb 2.0)