Solved Need to downgrade from Professional to Home Premium without the DVD

[ghmfghn]

I have bought a second hand computer and the seller has done a fresh install of Windows but he has installed Professional and the license key on the laptop is for Home Premium. The installed version does not accept it and I have no other key (contacting the seller for something is not possible). I use none of the features that make the difference between the versions so I want to downgrade the system. The problem is, I don't have the DVD and all trustworthy download sites for it that I found are offline. The two methods I found for downgrade (simple new install as well as changing the version in the registry and "repairing") need the DVD.

 

[AddRAM]

Here ya go, burn to dvd at no more then x4 speed.

Or install from a 4 GB usb stick, all links below.

Download Windows 7 ISOs, Legally and for Free | PCsteps.com

Free ISO Burner

WiNToBootic bootable usb drive windows vista/7/8 - Bootable USB | Bootable USB

 

[ghmfghn]

It worked. Thank you!