What exactly does KB2952664 do?

In response to my posting this morning - I was away from my computer yesterday, and I had not read any news feeds before I had posted this morning.  I then looked at my inbox, and I read a news feed article about the Windows 7 roll-up.  I have downloaded the roll-up, and I will install it as soon as I have finished my research.  I did download the (somewhat useless 3125574.csv file, which tells me which files are to be updated but does not tell me the individual fix IDs.  The spreadsheet has 250,587 lines and 21,750 names of changed files.

As far as I can tell, this roll-up will not ship patches that have been released via Windows Update; it does not re-release the nagware patches.  It does release all of the non-WU-released patches so that there will be a more current Windows 7 base on which to install Windows 10 (if the user wants Win 10 installed).  I do not know the internals of the Win 10 in-place install, so I do not know what in the roll-up might affect the Win 10 installation, which over-writes the Windows 7 installation.

Unless my understanding is backwards, it had to include the WU changes.  This was NOT announced as "get those fixes that were not in WU", it was announced as "No need to install hundreds of updates, running WU over and over because many things install once and then are subject to later updates, or there are some that have prerequisites".  (I used quotes but it really was paraphrased.)

There's a CHANCE it includes things not in WU, but I'm pretty certain it has to include everything in WU.  Not sure if it shows up as one entry or hundreds.

As far as I can tell, this roll-up will not ship patches that have been released via Windows Update; it does not re-release the nagware patches.  It does release all of the non-WU-released patches so that there will be a more current Windows 7 base on which to install Windows 10 (if the user wants Win 10 installed).

Here is a quote from Microsoft engineer Nathan Mercer's Tech Net post:

[the new Windows 7 rollup] "contains all the security and non-security fixes released since the release of Windows 7 SP1 that are suitable for general distribution, up through April 2016."

The entire Tech Net article can be found here:

https://blogs.technet.microsoft.com/windowsitpro/2016/05/17/simplifying-updates-for-windows-7-and-8-1/

These are all of the "telemetry" updates that I have confirmed either through research or personal observation. Not to say there aren't more, but it's a start.

In response to my posting this morning - I was away from my computer yesterday, and I had not read any news feeds before I had posted this morning.  I then looked at my inbox, and I read a news feed article about the Windows 7 roll-up.  I have downloaded the roll-up, and I will install it as soon as I have finished my research.  I did download the (somewhat useless 3125574.csv file, which tells me which files are to be updated but does not tell me the individual fix IDs.  The spreadsheet has 250,587 lines and 21,750 names of changed files.

As far as I can tell, this roll-up will not ship patches that have been released via Windows Update; it does not re-release the nagware patches.  It does release all of the non-WU-released patches so that there will be a more current Windows 7 base on which to install Windows 10 (if the user wants Win 10 installed).  I do not know the internals of the Win 10 in-place install, so I do not know what in the roll-up might affect the Win 10 installation, which over-writes the Windows 7 installation.

Some telemetry updates seem to kick in even for those who have opted out of the CEIP or similar MicroSpy programs, despite descriptions that suggest otherwise. In addition to checking for such updates, it's also a good idea to check every Microsoft/Windows process in the Task Scheduler. I have found (and disabled/removed) many active in both W7 and W8 machines that had "opted out" of any telemetry-based activity.