Many of my clients are having Windows Update failures, particularly with the October Security rollup (KB3185330), but also KB3133977 and KB3033929 in some cases. I have resolved the issue — all is explained below.
— My Dell Optiplex 780 and 790 models are affected for sure, as I’m hearing from my clients and working with my test computers. (Also, Dell Inspiron 15-3537 in one case)
— My test computers have no hidden updates and have all other Windows Update up-to-date.
— My test computers have no antivirus.
— When the KB3185330 is run and I restart, it goes to 79% complete in configuring, then it goes to:
Failure configuring Windows updates, Reverting changes. Do not turn off your computer.
— Something this leads to hours and hours of hard drive writing, even to the point of filling the drive (in the (C:\Windows\logs\CBS folder).
— I’ve run the Microsoft System Readiness Tool (32-bit link, 64-bit link), which seems to check the integrity of some of the Windows Update folders. It leaves a CheckSUR.log file in the C:\Windows\logs\CBS folder. Whether it comes back clean or fixes something, it doesn’t prevent the October security rollup from failing.
— I made sure drivers were all up-to-date.
— I tried disabling from unnecessary devices (Intel Active Mgmt SOL, COM1, LPT1), no success.
— I tried changing the drive boot from AHCI to Legacy, no success.
POTENTIAL REASON FOR FAILURE
Some have reported using GRUB or other booting methods other than booting straight to Windows. Try booting directly to Windows. That’s not my problem.
Thanks to an anonymous poster, I figured my problem out. I searched for “Computer Management” in the Start menu (or right-click on Computer, Manage). In here, I have a Recovery partition built by Dell from their OEM image. In the computers that are failing, the Recovery partition has no room left. (In this picture, the RECOVERY partition has 1.96GB of space after I fixed it.
I used Acronis Disk Director to shrink the C drive by 2 GB before the partition and then increased the size of the Recovery partition, rebooted, ran the KB3185330 and it worked!!!
This is for the technically minded, I know. I’ll see if I can figure out a simpler way. Here is a decent place to read up on removing the Recovery partition, which I haven’t tried yet.
The reason this has happened to computers I’ve setup is because I use Acronis True Image to image OEM drives — usually to SSDs that are smaller than the original 500GB OEM hard drive. Acronis’s software slices off free space in the Recovery partition when fitting to a smaller drive, hence the lack of space on the Recovery partition.
This may also affect KB3133977 and KB3033929.
Please share thoughts and what fixed this for you!