Every time I open unity files change in github?

[Gavin-Hawk]

Hello!

I've been working on a project today, I just downloaded unity and github on a newish laptop and I'm running into a few issues. First is with unity where no matter if it is closed it always says there is already a version open, I'm looking at unity specific forums for that. Example:

But what I think is a effect of this issue, but not sure, is every time I boot up unity a bunch of files change. Sometimes it is pretty drastic although only in size. All it ever says is, "this binary file has changed". I'm really confused and I realize this is far above my skill level.

Thank you in advance! Gavin