Windows 11, the latest version of Microsoft's computer operating system, launches worldwide on Tuesday as a free upgrade for Windows 10 users.

Windows chief product officer Panos Panay, told the BBC the latest version was built to be "clean and fresh and simpler" for the user.

He promised that the new operating system would not be an "extreme departure" from what people know.

And even the least tech-savvy users can upgrade easily, he added.

"I use the frame of my father - he's 89," Mr Panay said. "I'm so excited for him to hit that button and upgrade, you have no idea.

"Not because he's my dad - because I just want it to be easy for him."