My Writing and win10

I've been working to complete a story that I started years ago and trying to fight off the relentless win10 boogieman. With so many open projects, I don't want to allow that onto my desktop while not knowing how to use win10.

So, I have an aged Toshiba laptop that has been running the upgrade since 9:00PM last night. It is 9:33 AM and it seems to have finished.

What have I done?

Gwen