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).
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.