@Donaldj I worked with earlier version of LINUX but not in 15 years. I’m quite rusty. We switched all of our servers over the Windows based right after the millennium.
We did some experimental dual boot systems about 10 years ago, but I was on the peripheral and as I recall it was less than successful.
I did a search for “Linux Mint 18 and skype” and I see a couple of you tube videos and web hits that look promising.