I came across a ZDNET article

"This Linux distro is so Windows-like, it even comes with Microsoft apps"

<https://www.zdnet.com/article/this-linux-distro-is-so-windows-like-it-even-comes-with-microsoft-apps/>

Perhaps, this is the Linux distro to help you (your colleague) to a Linux OS based desktop 

Hosted at SourceForge -- download link: