Windows Update Failure – KB3033929?

Do you have a dual boot system on your PC?

Occasionally I have had a Windows update failure. Disabling the dual boot system has allowed the update to be installed. In the case of windows update KB3033929, the following symptoms occurred:

  • After installation, the PC reboots.
  • During the boot-up configuration, the installation fails.
  • Windows reverses the update and reboots.
  • It will try to install the update again but fails. Eventually, it just boots into windows without installing the update and announces that the update has failed?

Note: Another factor may be that I have two hard drives installed (or a hard drive and SSD). Each with a different operating system on it.


The solution is to enter the bios and disable the hard drive (or SSD) that has the non-windows operating system installed on it. For example:

  • In the bios (in my case Gigabyte) under ‘Hard Drive BBS Priorities’, I made a note of my settings. Note: You may want to make a note of your ‘Boot Option Priorities’ as well, in case changing the ‘Hard Drive BBS Priorities’ effects your previous settings.
  • I then selected ‘Boot Option #1’ and disabled it (see the image below).
Windows Update Failure - Bios Settings
Windows Update Failure – Bios Settings
  • I then re-installed the windows update (in this case KB3033929).
  • Rebooted the PC and the update installed successfully.
  • I then went back into the bios and restored the original settings I had made a note of earlier. Check your ‘Boot Option Priorities’ as well if you need to.
  • I then booted back into windows to check if all was OK.

My computer was then back to normal with the new update installed.

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