Hi good deal
Yea they "the other 2" may show up later :)
Keep an eye out although all to date have been in the Optional section so they can be for the most part ignored
Focus on the Important ones
If you missed this one and it was installing with others it would of likely made some others fail to install
https://support.microsoft.com/en-us/kb/3020369

I would yes load all Important ones windows gts a tad cranky if they are not or are hidden.