You can create an ISO per product and language or one large “cross-product” DVD for all multiple operating systems.
Most PC experts will recommend you start fresh and "pave" your machine anyway.
If this walkthrough paralyzes your hamster or causes you any emotional distress, we never spoke and I don't know you.
You found it on the intertubes for free, so what do you expect. My relative has a nice basic Dell desktop with a gig of RAM and a 100 gig HD.
Don’t follow these instructions unless you’re sure you’re ready for Windows 7.
Matt Egan is Editorial Director of IDG UK, publisher of Computerworld UK, having worked for the UK's leading technology media company since 2003.