What exactly does KB2952664 do?

How many Microsoft engineers does it take to screw in a light bulb?

None. They're all too busy trying to screw the users.

That's the only reason I can think of as to why this update shows up once again, after I have hidden it several times. And, as every other time, the "More information" link provides none, other than some vague statement about how it will "ease the upgrade experience."

It is clear that Microsoft keeps trying to sneak this update past us, and it is equally clear that they don't want us to know what it does. I miss the days when I didn't have to research every single Windows update before deciding whether to install or hide it, but that would mean trusting Microsoft, and they are making it very hard to do that.

I will say it again, and again, and again, as many times as they unhide this update:

The moment a company believes itself to be invincible is the moment it begins the process of proving itself wrong.

P.S. Of 15 "important" updates I received today, 10 were security-related. Of the other 5, two were superfluous for me (although they may be needed for others), two were related to "upgrading" or installing "the latest Windows operating system" (the other one to watch out for is KB3021917), and one was to fix problems caused by a previous update.

Caveat emptor.

I just spent a couple hours trying to fix the update failure for this KB2952664. It failed with Error Code 80246007, and I have not been able to successfully fix it using all the many ways given in another thread.

However, my computer is too old ( Dell Dimension 8400 with maximum RAM and hard drive and converted to Win 7) to ever try Win 8.x, so I will just hide this update and go on. Sure wish I had thought to look up what the update actually did before I spent all that time trying to get it to work!

I had to uninstall this patch since it caused an error and Powershell was continuously crashing on me.  Since it is of no importance to me I've hidden it and hope my problem with Powershell stays away.

Thanks Gerry, but I think I'll pass on the installation of this update as I've got all the other ones and can still update new ones that come up. From all the **** I've heard about this update I don't want it to corrupt my boot up.

                                          Thanks for commenting on my problem;

                                                           Omaha Bullock

I am using Win 7 64 bit SP1. Windows Update has been trying to install KB2952664 since September. It always fails with an error code 80073701. However I can find no information on the MS site that explains this error code.

So, not only is the purpose of the update vague, but I can't even find out why it failed. Even more vague.