Did that.

I did a really good clean-up this morning before I started. Ran my virus checker, CC Cleaner, Malwarebytes, etc. I sorted out all the junk that was in my downloads folder and put the important stuff into separate folders on my desktop. My computer is pretty clean. Other than photos and music, the only thing taking up a lot of space is S3.
I had an update the other day that made things flaky for a bit but it's sorted itself out.