But for now, wait it out and I suggest you change this setting (link to follow) now.
Read http://www.howtogeek.com/224981/how-to-stop-windows-10-from-uploading-updates-to-other-pcs-over-the-internet/
It has helped more than a few.
I haven't had my computer plugged in for about 2 months because of renovations and it ran fine before, well as fine as my old *** computer can run, but now its running extremely slow. At first I thought it was the internet because I now have it on wifi instead of an actual connection, but it still opens things that don't need the internet way slower than it used to even if I am disconnected. The only thing that has changed is time, so I am wondering if it was a windows 10 update or if I need to clean out my computer or something like that.

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