Windows 11 24H2 update kb5044284 fails on reboot at 40%, error 0x800f0922 - SOLVED, page 5

It's the same error La Fargeotte saw, and the root cause is the same.

Maybe the following repair installation method will help.

1. Download Windows 11 Media Creation Tool (MCT) from this link:

https://go.microsoft.com/fwlink/?linkid=2156295

2. Run MCT and download the ISO it recommends for your system. Do *not* uncheck "Use the recommended options for this PC".

https://www.winhelponline.com/blog/how-to-download-windows-11-iso/ (screenshots)

3. Right-click on the downloaded ISO and choose "Mount." This assigns the ISO a drive letter.
4. Run setup.exe from the ISO drive. This starts the repair installation.

(Your files, settings and applications will be preserved if you use the ISO recommended for your system by the Media Creation Tool.)

Hello La

Healthy (EFI System Partition) in your screenshot

Insufficient space in the System Reserved partition.

1. Failed connection to Microsoft Update servers due to networking issues, VPNs, or firewalls.
2. Corrupted Windows update components.

Here are steps to resolve the KB5044284 update failure with error 0x800f0922:

1. Check System Reserved Partition Space

Problem: The System Reserved Partition (used by Windows to store boot files) may not have enough space for the update.

Solution: Expand the System Reserved partition:

• Open Disk Management: Press Win + X and choose Disk Management.
• Look for the System Reserved partition (usually 100-500 MB).
• If it's full, you'll need to extend it by shrinking another partition using third-party tools like MiniTool Partition Wizard or EaseUS Partition Master.
• After resizing, retry the update.

2. Disable VPN and Firewalls

Problem: VPNs and firewalls can block Windows from reaching the Microsoft update servers.

Solution:

• Disable any VPN if you are using one.
• Temporarily disable third-party firewalls (if installed) and test the update process again.
• You can also temporarily disable Windows Firewall:

Go to Control Panel → System and Security → Windows Defender Firewall.

Select Turn off Windows Defender Firewall for both public and private networks.

3. Use Windows Update Troubleshooter

Problem: Corrupted Windows Update components could be interfering with the update.

Solution:

• Run the Windows Update Troubleshooter:

Open Settings → System → Troubleshoot → Other troubleshooters.

Find Windows Update and click Run.

• Follow the on-screen instructions to resolve detected issues.

4. Manually Reset Windows Update Components

Problem: Sometimes, components related to the Windows Update service become corrupted.

Solution: Reset Windows Update components manually by following these steps:

• Open Command Prompt as Administrator:

Press Win + S, type cmd, right-click, and select Run as administrator.

• Stop the update services:
• net stop wuauserv
• net stop cryptSvc
• net stop bits
• net stop msiserver

1. Rename the SoftwareDistribution and Catroot2 folders: ren C:\Windows\SoftwareDistribution SoftwareDistribution.old ren C:\Windows\System32\catroot2 catroot2.old
2. Restart the services

• net start wuauserv
• net start cryptSvc
• net start bits
• net start msiserver

1. Retry the update.

5. Use the Media Creation Tool (for In-Place Upgrade)

• Problem: The existing Windows components might have some corruption preventing the update from proceeding.
• Solution: Use the Media Creation Tool to perform an in-place upgrade, which reinstalls Windows without affecting your files or apps.
  1. Download the Media Creation Tool.
  2. Choose Upgrade this PC now.
  3. Follow the prompts and opt to Keep personal files and apps.
  4. After the in-place upgrade, retry installing KB5044284.

7. Download and Install KB5044284 Manually

• If none of the above steps work, try manually downloading and installing the update.
  1. Go to the Microsoft Update Catalog.
  2. Search for KB5044284.
  3. Download the appropriate version for your system (e.g., 64-bit).
  4. Install the update manually by running the downloaded .msu file.

Hi La Fargeotte,

Launch "Services.msc". Double-click "App Readiness".

Set it to Manual start. Click Start to start the service.

Attempt to install the KB5044284 update.

If you get the same error (0x800F0922), please upload your CBS logs to OneDrive and share the link here.

c:\windows\logs\cbs\                   <= Zip and upload the two most recent log files in this folder.

Additionally, upload the following file:

c:\windows\INF\setupapi.dev.log

(How-To: Share OneDrive files and folders - Microsoft Support)

Share OneDrive files and folders - Microsoft Support:

https://support.microsoft.com/en-us/office/share-onedrive-files-and-folders-9fcc2f7d-de0c-4cec-93b0-a82024800c07

:: OneDrive sharing options - screenshot ::

    https://imgur.com/a/vZyxpY9

Hello,

Here is my Boot/Windows drive on this PC, a desktop.

Which is the system reserved partition?

We also have two laptops in the family, they updated fine and have the same disk layout.

I will wait to hear back from you before I proceed.

Thanks.