Windows without cd

As long as the product key is legitimate you can do the following:

1. Go to Digital River and download the ISO file that is correct for your product key.
NOTE: If your product key is pirated or black-listed (fake) it will not work.
2. Follow the instructions for creating a USB Key to use to install Windows 7, found HERE .

DOUBLE NOTE:
I will say this again, if the product key is not genuine/pirated/black-listed, it will not work correctly. Do understand that we do not directly support those types of piracy and we will not do so.

I'm giving you the benefit-of-the-doubt since the information I gave you requires a valid key anyway.

 

Where did you acquire the product key?

@Hedwar, actually there's a far simpler option to making the bootable usb stick that I use on a fairly frequent basis to repair friends and family pc's.

http://www.isotousb.com/ < ESET gives you a malware warning but it is a false positive. The application found there is a handy little tool that will format the usb stick and flash the ISO for you.

There's other, similar applications, but that's the one I use.