Error: 0x800F0922 when installing KB 2919355

***It appears I have stumbled upon a fix for all KB2919355 issues and will be posting this to numerous forum threads***

As many discoveries have been made, I discovered this accidentally. and quite by coincidence... 

In order for users, who've been plagued by errors and file corruption, to get a successful completion of KB2919355, all that's needed is to run the 8.1 upgrade installer, and when the 8.1 installed goes to the wait screen after entering the generic product key, start Windows Update for the install of KB2919355

Steps

1. Run the Windows 8.1 installer from within Windows, as if you're going to do an install repair "upgrade".
2. Enter the generic product key, and upon clicking next, the installer will say wait...
3. Give the installer about 5 minutes, then start Windows Update (it should show the KB2919355 update), and click install.
4. Windows Update will begin downloading the update... if you have a Windows Update cache problem that causes the speed and percentage to remain at zero, don't worry about it and get the update installed first, then you can clear the cache and remove the directories afterwards.
5. The install may fail, don't worry... simply hit install again, making sure the 8.1 installer screen is still on the "wait" screen, as whatever the installer is doing during the "wait" screen is what makes the KB2919355 install possible.
6. KB2919355 should install and Windows Update should request you to restart... simply do so without cancelling the 8.1 installer.  Windows will finalize the update during the shutdown and restart processes.
7. Upon rebooting into Windows, you will have a multitude of additional updates that will need to be installed (around 10, give or take a few), and you can verify the install of KB2919355 by going to "view installed updates"

A few users will need to comment back once they'e performed this in order to see if this automatically fixes the multitude of issues users are facing, and if it doesn't complete successfully, then I can back track what step I took over the past several days in order to figure out what caused this to work for me, but not others if problems occur.

Have you run DISM /online /cleanup-image /restorehealth

since the update was installed? 

There are reports the update may cause that command to fail.

After all the head scratching, I finally caved in and called MS support and spent a little over 2 hours on the phone.  It would have been longer but the call ran into the centers quitting time.  Essentially support repeated a few of the steps I took but with a couple of variations.  The significant new steps were –

Ran DISM /online /cleanup-image /startcomponentcleanup

Rebooted

Verified KB2919442 was installed (it was)

Downloaded the individual components of KB2919355 from

http://www.microsoft.com/en-us/download/details.aspx?id=42335

Closing time came right as KB2919355 was running and I was instructed to follow the order below -

Clearcompressionflag.exe, KB2919355, KB2932046, KB2959977, KB2937592, KB2938439, and KB2934018.  This took the better part of 2 hours albeit I wasn’t glued to the desk all the time.  A Level 2 call was set up for this morning which turned out to be unnecessary because after installing all of the components w/o any errors the OS seems to be running fine. 

On a side note, I would recommend installing EMET 4.1 for additional protection.

OK - thanks - this box had vendor installed 8.0 and I've walked it up to 8.1.  I'm not going to have an 8.1 product key.  On a brighter note the problem is resolved and I will update my original post...

Do you have any idea, hints, etc.  on where this mysterious download is?  I cannot not for the life of me find it... 

Thanks

I still have the .exe in my downloads folder. Full name : "OSGS14-WindowsSetupBox-32bitand64bit-English-4141408.exe" Also, it requires your Windows8.1 Product key.

Maybe that helps? Do you have an idea if I can track the .exe to see from which website it was downloaded?