NSA warns about Windows 10 security issue's

I'm a reasonably intelligent end user. With a good amount of tech ability.
XP worked.
7 pretty much works.
I bought my wife a Lenovo with Windows 10 around 2 or 3 years ago.
What a piece of junk.
She only needs internet and a Chrome book last month fixed the problem for her.
Wish I had known earlier.
What do I do with the boat anchor?

The Lenovo has always been the one I dislike most.
Toshiba is another.