I wonder if someone can help with this please. I currently have windows 7 ultimate 32bit installation on my desktop. I bought the desktop from a friend who had no operating system on the desktop before he installed windows 7 ultimate 32bit. He installed the operating system using an ISO boot disc which he no longer has.
I would like to change the operating system to windows 7 ulitmate 64bit and my desktop is capable of this.
The question is how do i do this please? Any advice would be most welcome.