Solved: Download Error - 0x800f0806 in Windows 22H2 Update

User Case: Windows 11 2022H2 Update Error

The first major update for Windows 11 was released on September 20, 2022. It was named Windows 11 2022 Update l version 22H2. You can also call it Windows 11 22H2 Update or Windows 11 2022 Update, or Windows 11 Sun Valley 2. But it seems that some users are experiencing some problems when trying to update. They were unable to install the latest Windows 11 22H2 update due to the "Download Error - 0x800f0806" message.

This issue is very frustrating for Windows 11 who have been waiting for this update to arrive. Don't worry, this article provides you with some possible solutions.

4 Solutions to Fix Download Error 0x800f0806 in Windows 11

Most of the time, updates fail to install because of corrupted system files and malfunctioning update components. Using the built-in update troubleshooter may also help. In most cases, it can diagnose the problem and fix it automatically. When it fails to do so, the user must fix the problem manually. Let's see how each of these six methods works!

Solution 1. Run Windows Update Troubleshooter

1. Press Windows + I to open Settings and select System from the left pane. Then scroll down on the right pane and click Troubleshoot.
2. Click on Other trouble-shooters. Find Windows Update troubleshooter and hit the Run button.

Solution 2. Run SFC Scan Command to Repair Corrupted System Files

Corrupt system files or the hard drive itself may cause your Windows 11 22H2 update to fail. To resolve these issues, you can use your Command Prompt and run the SFC and CHKDSK commands separately to repair the corrupted system files.

1. Press Windows + S to open the search bar, type cmd and select Run as administrator.
2. In the Command Prompt window, type sfc /scannow and press Enter.
3. Enter the following commands in sequence and press the Enter key to execute the commands separately.

• Dism /Online /Cleanup-Image /ScanHealth
• Dism /Online /Cleanup-Image /CheckHealth
• Dism /Online /Cleanup-Image /RestoreHealth

Solution 3. Install the Windows 11 KB5017321 Update Manually

If the automatic download is not successful and you encounter download error 0x800f0806, we recommend trying your manual download and installation of the update.

1. Go to Microsoft Update Catalog directly to download the update files manually.
2. Type the KB number - KB5017321 in the search bar, and press Enter or click Search.

3. You'll find many different versions in the update - you'll need to find the one that matches your computer's specifications and Windows version.

4. After selecting the correct version, click the Download button and follow the on-screen instructions. Reboot your system when you are done.

Solution 4. Fresh Reinstall Windows 11 Version 22H2

Another solution is to create Windows 11 installation media from the official Microsoft website, and use it to perform a reinstallation of Windows 11 22H2 update. This may fix the download error 0x800f0806 you encountered in the update.

🎇 Note: Before you start, prepare a USB with at least 8 GB of storage. Also, if it is not empty, back up the files on the USB drive in advance, otherwise you will lose them.

1. Insert your USB drive into the USB port of your computer.
2. Download the media creation tool from Microsoft. Click the "Download Now" button under the "Create Windows 11 Installation Media" section.

3. Right-click MediaCreationToolW11.exe and select Run as administrator. On the License terms page, select Accept.
4. Then select Create installation media (USB flash drive, DVD or ISO file) for another PC, and then click Next.

5. The Setup program will automatically select the language, version, and architecture of Windows 11 based on your current Windows environment. If you want to change the default options, uncheck the box "Use recommended options for this computer" and then select from the available options.

6. Then select the USB flash drive to reinstall Windows 11 and click Next.

7. You will see a list of removable drives available on your computer. Select the USB drive you just connected and click Next to start creating the Windows 11 installation media.

8. After creating the Windows 11 installation media, restart your computer and press a certain key (usually F2, F12, Delete, or Esc) to enter BIOS.
9. Open the boot menu and set the USB drive as the first boot device. Follow the Windows Setup wizard to clean install Windows 11.

Back Up Computer Before Upgrading to Windows 2022H2

I hope you can solve Windows 11 2022H2 update download error 0x800f0806 after trying the above four methods. In order to avoid unnecessary troubles caused by similar errors you encounter during future updates, such as data loss or your computer not booting, it is recommended that you make regular backups of your computer.

AOMEI Backupper Standard is a powerful free backup software for all Windows PCs, such as Windows 11, 10, Windows 8.1/8, Windows 7, Vista and XP (all editions, 32/64-bit). It can provide you with a comprehensive range of features to protect your computer system and data.

🍥 It provides you with System Backup, File Backup, Disk Backup and Partition Backup functions, you can choose the kind that suits you according to your personal needs.
🥫 It allows you to create backups to different destinations, you can backup to cloud services, external disks, USB drives, NAS devices, etc.
🧉 You can also set up automatic backup tasks via Schedule Backup function. There are different backup frequencies for you to choose from: daily, weekly, monthly.

In order to protect your Windows 11 PC before upgrading, you can use AOMEI Backupper Standard to create a system backup in advance. Once you encounter some system-related problems, you can use this backup to restore your computer to a previous date.

You just need to download this software on your computer. After installation, launch AOMEI Backupper Standard and select Backup in the left panel and System Backup in the right. The program will select the system and boot partitions as sources by default.

After following the instructions to create a system backup, click Finish. You can also create a bootable media with AOMEI Backupper Standard. If you encounter a serious system problem that prevents you from booting your computer, you can use this bootable media to access AOMEI Backupper and restore using the system backup.

Final Words

The much-anticipated Windows 11 2022H2 has been released on September 20, but many users have encountered some problems while upgrading, and the download error 0x800f0806 is one of them. Hope you can solve the problems you encountered at the moment by reading this article.