Resolving Windows Server 2012 R2 Update Installation Error 0x800f0923

To address the error code 0x800f0923 when applying updates on Windows Server 2012 R2, follow these instructions:

1. Verify and install any outstanding updates: Prior to installing new updates, ensure all pending ones are completed. Navigate to Settings > Update & Security > Windows Update and select Check for updates. Install any available updates before proceeding with the new installations.
2. Temporarily deactivate antivirus software: Antivirus programs can sometimes block the update process. Disable your antivirus temporarily and try to install the updates once more.
3. Utilise the Windows Update troubleshooter: Windows Server 2012 R2 includes a troubleshooter specifically designed to resolve update issues. Access it by going to Settings > Update & Security > Troubleshoot > Windows Update and activate the troubleshooting process.
4. Reset the Windows Update components: Should the troubleshooter fail to resolve the problem, consider resetting the Windows Update components. Execute the following commands in an elevated command prompt:

 net stop wuauserv
 net stop cryptSvc
 net stop bits
 net stop msiserver
 ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
 ren C:\Windows\System32\catroot2 catroot2.old
 net start wuauserv
 net start cryptSvc
 net start bits
 net start msiserver

Attempt the update installation once again after these commands.

5. Attempt a clean boot: If the previous methods are ineffective, performing a clean boot might help. This approach starts Windows with only essential drivers and startup programs, aiding in the identification of software conflicts that might be disrupting the update process. To execute a clean boot, follow these steps:

a. Press the Windows key + R to open the Run dialogue box.
b. Type msconfig and hit Enter.
c. In the System Configuration window, go to the Services tab.
d. Select the checkbox next to Hide all Microsoft services.
e. Choose Disable all.
f. Navigate to the Startup tab.
g. Select Open Task Manager.
h. Within Task Manager, disable all startup items.
i. Close Task Manager and click OK in the System Configuration window.
j. Restart your system and try the update installation again.