Wow, that one’s a mouthful.

This weekend I was working on a client’s PC that repeatedly failed to install these four updates.  Upon rebooting, the PC repeatedly entered the “Reverting Changes…” step of Windows Update that occurs when one or more updates fails to install properly.  The error code (0x80071A90) isn’t very helpful, either.

Fortunately, the solution to this one is easy.  All that’s required is for you to first download and install the standalone update package for KB2647753 separately.  You can find the standalone package here:

http://www.microsoft.com/en-us/download/details.aspx?id=29156

Once you’re finished with this, perform the remaining updates once more.  They should now properly install.

This is often the best solution anytime Windows Update chokes on one or more updates.  The standalone package is always the first thing I try, followed by the Windows Update System Readiness Tool, and finally more advanced/invasive measures, such as resetting the SoftwareDistribution store or running Microsoft Fixit 50202 in Aggressive mode.  I won’t cover those procedures in any more detail here as it isn’t really needed, but if you’re in need of help, leave me a comment and I’ll elaborate!

Never bother with Windows Update again.  If you’re a repair tech or sysadmin, check out WUInstall Pro today!