Convert Win7 Ultimate to Pro or Home Premium

Here's the crux of the matter: If you put a DVD containing Win7 Ultimate in your PC and run the installer — either by booting from the disc or running the setup program from inside Windows — you end up with Win7 Ultimate। No surprises there।






However, if you first delete a tiny file named ei.cfg before making the installation DVD, the Win7 installer will give you the choices shown in Figure