An as yet undetermined critical update just rechecked "recommended" for me yesterday when I specifically unchecked it before manually updating a fresh 7 install

An as yet undetermined critical update just rechecked "recommended" for me yesterday when I specifically unchecked it before manually updating a fresh 7 install. Once the 1st round of 170 updates finished w/ a couple fails, I unintentionally/fortuitously clicked settings and saw the box checked. *This was updates before 3/27/2015, btw, I now need to vet the remaining ~170 of the 40 known/unwanted Win 10 malgrades.