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I purchased a new 64 bit computer with Windows 8 (not Pro) installed in December 2012. Today I am running Window-8 updates. All updates have a Status of Succeeded except one update that downloads but does not install. In Control Panel, Windows Updates ...

After downloading, the install begins then FAILS about 25% (according to the progress bar) into the install. I have read on other forums and have learned that this particular update (KB2779768) consists of 4 updates in one. So far I have read about users who have completely reinstalled Windows-8 and the problem persists.

There were stories on the other forums about users spending an hour and a half (plus) on the telephone with Microsoft support to get the update successfully installed but there we no details provided.

The KB2779768 update appears to be a rather recent one circa December 2012. I looked at my Update History Log and see that KB2779768 (Important) is the first entry in the log and failed the day the operating system was installed (December 12/18/2012). My computer appears to be working fine.

The install failure delivered the following error: Code 8000FFFF

My questions are:

  1. Has anyone heard about a resolution to this problem?
  2. Does Microsoft plan an automated solution to the failure of KB2779768?
  3. Would you look in your Windows Update Log to see if KB2779768 installed successfully?

I hope I've asked the question clearly and correctly - this is the first question I have submitted to this forum. Please let me know if I can provide additional information.

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I would contact Microsoft for assistance if other people have reported success in installing this update after doing so. Without additional information we are unlikely able to provide any assistance. – Ramhound Jan 4 '13 at 16:16

Try installing it manually.

First, here's the page for the update:

One of the things that page tells you is that you can go to the download center and download the update yourself. Thus we reach this web page:

You said you're running x64 Windows 8, so that bring us here:

The four updates listed on that page are:


Try downloading them and installing them one at a time. One or more of them will likely fail and complain about something, hopefully something specific. It could even be something along the lines of "That's already installed".

Good luck!

Since you're now getting a specific error code, here's the KB article that tells how to deal with it:

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Also, running appwiz.cpl, clicking View Installed Updates and then pasting that KB # into the search window shows me that my machine installed the hotfix on 1/3/2013. – Mark Allen Jan 4 '13 at 20:53
+1 for proving me wrong, I love this board. – Everett Jan 5 '13 at 2:39
Nothing's proven yet, but thanks. Let's see if they can figure out which hotfix isn't installing and why not. :) – Mark Allen Jan 5 '13 at 19:37
Mark, please see my comments above. – user184390 Jan 9 '13 at 1:20
@user184390 - I don't see any new comments, sorry. Which MSU file won't install, and what is the error message it gives you when you try? – Mark Allen Jan 9 '13 at 8:08

Welcome to SuperUser!


an hour and a half (plus) on the telephone with Microsoft support

tells you we likely aren't going to be able to help you here. If it takes the manufacturer an hour and a half to fix the mess, we aren't going to be able to do this in a response to the question. It sounds like you too are going to have to contact MS about this issue.

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3.Would you look in your Windows Update Log to see if KB2779768 installed successfully? – user184390 Jan 4 '13 at 17:41
He doesn't use Win7 either. :P – Mark Allen Jan 4 '13 at 20:54
Sorry, I don't run Windows, I run OS X – Everett Jan 5 '13 at 2:33
If you are planning on adding to the negative score, engage your brain first and notice the word LIKELY in bold, along with the explanation as to WHY it LIKELY won't be answered here. That or leave an explanation on why you think this is wrong... – Everett Jan 8 '13 at 14:30

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