http://www.dslreports.com/forum/r30348398-WIN7-Win-7-updates-to-avoid-or-be-careful-with
some more updates that appear bad.
Good find, especially because it gives a short description about what each of them actually does. Unlike the Windows Update phrase "Install this update to resolve issues in Windows" with a link to the support site where the information is hidden between more phrases and endless lists of affected systems.
For the record, I noticed a couple of things:
I went through both of the longer lists on that thread to find out that four updates of the latter list were installed on my system, two of which appeared also on the first list. One of them was the optional update I asked Skuzzy's opinion about in a
previous thread. The ones I had were KB2670838, KB2990214, KB3075851 and KB3083324. As said, three of them were rated "critical" updates. The two latter of them improve Windows Update itself according to the relevant MS Support sites.
Seven (7) of the updates mentioned on the longer list appear as "optional" updates in Windows Update for my system. Apparently the rest would appear after installing those.
After uninstalling KB2670838 (optional) and KB2990214 (critical) Windows Update didn't show the four (4) "critical" updates that were available before! Peculiar! Note that I have WU set to manual only so all of this is fresh information.
I checked my wife's computer, too. Critical updates only, set to automatic. The results were similar to mine with the exception of her having KB3083710 (Windows Update Client for Win7: October 2015) installed.
In the longer list I found a typo. Instead of KB30
15249 it should read KB30
75249. So careful when doing anything radical advised by lists like this.
Conclusion: Deselecting "Recommended updates" works wonders without any further effort than occasionally checking it hasn't automatically been re-enabled.