Installation of certain Windows updates may fail to complete. Although the installation itself succeeds, the configuration part does not complete, and the changes are reverted, causing all updates to fail. When looking at the update history (Windows Update → View update history), the updates have failed with error code 0x800F0922:



The following updates are known to be affected by this, but there are probably others as well.

Windows 8/Server 2012: KB2756872, KB2770917, KB2955163

Windows 8.1/Server 2012 R2: KB2919355

The affected updates fail to install because the System Reserved partition (not the C:-drive) is full or nearly full.

In my case, a log file in the System Volume Infor  ...