I made the mistake of installing the subject update. Didn't like it at all, and restored a previous version, but in Windows update, it is showing 20% installed and holding. It makes me nervous and I'd like to get rid of it. How to do that? Or just ignore.

Edit: The update finished, and all seems to be well. I had looked into what the update could do and, in doing so, mess up the color scheme I had previously established. Not going to change anything.