How to fix Windows update error 0x800f0806?

Question

Issue: How to fix Windows update error 0x800f0806?

Hello. Yesterday I tried to install an update on my Windows 11 laptop but it failed and I received a 0x800f0806 error. Is there any way to fix it?

Solved Answer

Microsoft regularly releases updates to keep Windows running smoothly. Update packages can contain new features, bug fixes, and security patches.[1] Recently, a new update came out for Windows 11 – KB5017321. It is a mandatory security update that many users reported failing to install with the 0x800f0806 error.

Not installing security patches for your operating system can leave it vulnerable to attacks. Hackers can use vulnerabilities[2] to deliver their malicious programs. Keeping the update uninstalled is not an option when it comes to security patches. It is unknown why exactly the 0x800F0806 update error appears. However, there can be a few possibilities.

Most of the time, updates fail to install because of corrupted system files, and malfunctioning update components. It may also help to use the built-in update troubleshooter. In most cases, it can diagnose the problem and fix it automatically. When it does not, users have to take the matter into their own hands.

In this guide, you will find 6 steps that should help you fix Windows update error 0x800f0806. Unfortunately, manual troubleshooting can be a lengthy process. You can use a maintenance tool like ReimageMac Washing Machine X9. It can fix most system errors, BSODs,[3] corrupted files, and registry issues. Otherwise, follow the step-by-step instructions below.

How to fix Windows update error 0x800f0806

Solution 1. Run Windows Update Troubleshooter

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Click the Windows button and select Settings
  • Select System from the left pane, then scroll down on the right pane, and click on Troubleshoot
  • Click on Other troubleshooters

Run Windows Update Troubleshooter

  • Locate the Windows Update troubleshooter and hit the Run button

Solution 2. Repair Corrupted System Files

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

Use Command Prompt commands to repair system file corruption:

  • Open Command Prompt as administrator
  • Use the following command and press Enter:
    sfc /scannow

Repair Corrupted System Files

  • Reboot your system
  • If SFC returned an error, then use the following command lines, pressing Enter after each:
    DISM /Online /Cleanup-Image /CheckHealth
    DISM /Online /Cleanup-Image /ScanHealth
    DISM /Online /Cleanup-Image /RestoreHealth

Solution 3. Delete Content from SoftwareDistribution Folder

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Click on the Start menu and type Services
  • Find Windows update, Background intelligent transfer Service, and Cryptographic services
  • Right-click on each of these, and select Stop
  • Press the Windows key + l
  • Select This PC from the Quick access sidebar
  • Double click on (C:) drive
  • Open Windows and find SoftwareDistribution/Download folder

Delete Content from SoftwareDistribution Folder

  • Select all the items there and Delete them
  • Restart your computer
  • Open Services again and select Start for each one

Solution 4. Install the Update Manually

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

If automatic download would not succeed, we recommend trying to download and install the update manually.

  • Go to the official Microsoft Update Catalog website
  • Type the KB number into the search bar, and press Enter or click Search

Install the Update Manually

  • You will find many different versions on the update – you need to find the one that matches your PC specs and Windows version (as a home user, ignore Windows server versions)
  • After picking the correct version, click the Download button and proceed with on-screen instructions
  • Restart your system once done

Solution 5. Reset Windows Update Components

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Open the Command Prompt as an Administrator
  • Type the following commands one by one and press Enter after each:

    net stop bits

    net stop wuauserv

    net stop cryptsvc

    Del “%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr*.dat”

    Ren %Systemroot%\SoftwareDistribution\DataStore DataStore.bak

    Ren %Systemroot%\SoftwareDistribution\Download Download.bak

    Ren %Systemroot%\System32\catroot2 catroot2.bak

    sc.exe sdset bits D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)

    sc.exe sdset wuauserv D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)

    cd /d %windir%\system32

    regsvr32.exe atl.dll

    regsvr32.exe urlmon.dll

    regsvr32.exe mshtml.dll

    regsvr32.exe shdocvw.dll

    regsvr32.exe browseui.dll

    regsvr32.exe jscript.dll

    regsvr32.exe vbscript.dll

    regsvr32.exe scrrun.dll

    regsvr32.exe msxml.dll

    regsvr32.exe msxml3.dll

    regsvr32.exe msxml6.dll

    regsvr32.exe actxprxy.dll

    regsvr32.exe softpub.dll

    regsvr32.exe wintrust.dll

    regsvr32.exe dssenh.dll

    regsvr32.exe rsaenh.dll

    regsvr32.exe gpkcsp.dll

    regsvr32.exe sccbase.dll

    regsvr32.exe slbcsp.dll

    regsvr32.exe cryptdlg.dll

    regsvr32.exe oleaut32.dll

    regsvr32.exe ole32.dll

    regsvr32.exe shell32.dll

    regsvr32.exe initpki.dll

    regsvr32.exe wuapi.dll

    regsvr32.exe wuaueng.dll

    regsvr32.exe wuaueng1.dll

    regsvr32.exe wucltui.dll

    regsvr32.exe wups.dll

    regsvr32.exe wups2.dll

    regsvr32.exe wuweb.dll

    regsvr32.exe qmgr.dll

    regsvr32.exe qmgrprxy.dll

    regsvr32.exe wucltux.dll

    regsvr32.exe muweb.dll

    regsvr32.exe wuwebv.dll

    netsh winsock reset

    net start bits

    net start wuauserv

    net start cryptsvc

Reset Windows Update Components

  • Wait for the process to finish and restart your PC

Solution 6. Repair Install Windows

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Visit the official Microsoft website to download Windows 11 Installation Media
  • Run the Media Creation Tool and select Create Installation Media for another PC
  • Select your USB drive
  • Let the Process complete of writing the Installation files to the USB drive
  • Click Finish
  • On the PC you wish to upgrade, Press Windows + E to open the File Explorer
  • Open the Removable drive and click Setup.exe
  • Accept the license terms on the next screen

Repair Install Windows

  • Confirm the Upgrade options – Files, apps and Settings are kept
  • Click Install, and the upgrade should start

Repair your Errors automatically

ugetfix.com team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

Offer
do it now!
Download Fix
  Happiness
Guarantee
do it now!
Download Fix
  Happiness
Guarantee
Compatible with Microsoft Windows Compatible with OS X
Still having problems?
If you failed to fix your error using Reimage, reach our support team for help. Please, let us know all details that you think we should know about your problem.
Reimage - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.Reimage - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of Reimage malware removal tool.

Prevent websites, ISP, and other parties from tracking you

To stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous by encrypting all information, prevent trackers, ads, as well as malicious content. Most importantly, you will stop the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.

 

Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost. To recover lost files, you can use Data Recovery Pro – it searches through copies of files that are still available on your hard drive and retrieves them quickly.

 

About the author
Ugnius Kiguolis
Ugnius Kiguolis - The problem solver

Ugnius Kiguolis is the founder and editor-in-chief of UGetFix. He is a professional security specialist and malware analyst who has been working in IT industry for over 20 years.

Contact Ugnius Kiguolis
About the company Esolutions

References

What you can add more about the problem: "How to fix Windows update error 0x800f0806?"