How to fix
KB5022303 fails to install
on Windows

Hello. I tried to install the latest Windows 11 update KB5022303, but it failed and I received the 0x800f081f error. How do I fix this?

KB5022303 is a security update for the Windows operating system. It addresses issues that affect the Local Session Manager (LSM) which could allow users without admin rights to perform actions that are restricted to administrators. Additionally, it also addresses a known issue that affects apps that use Microsoft Open Database Connectivity (ODBC) SQL Server Driver (sqlsrv32.dll) to connect to databases, as the connection may fail or error messages may occur.

However, some users have reported that this update is failing to install on Windows 11. This can be a frustrating issue, as it is important to keep the operating system up-to-date in order to maintain the security and stability of the device. Not having the latest security updates installed can leave a device vulnerable to malicious attacks, and an outdated operating system may also have reduced performance and stability.

Users report the KB5022303 update failing to install with error codes such as 0x800f081f and 0x80070002. There can be several reasons why a Windows update may fail to install. Some common causes include:

• Insufficient storage space on the device
• Conflicting updates or software installed on the device
• Corrupted or damaged system files
• Network connectivity issues
• Antivirus software or firewall blocking the update
• Issues with the Windows update service or settings

In this guide, you will find 6 steps that should help you fix KB5022303 fails to install in Windows 11. Keep in mind that the manual troubleshooting process can be lengthy. You can use a maintenance tool like [d1] that can fix most system errors, BSODs,[ref en-1] corrupted files, registry[ref en-2] issues, or clear cookies and cache[ref en-3] automatically. Otherwise, follow the step-by-step instructions below.

Method 1. Repair Corrupted System Files

Use Command Prompt commands to repair system file corruption:

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

• 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

Method 2. Run Windows Update Troubleshooter

• 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
• Locate the Windows Update troubleshooter and hit the Run button

Method 3. Restart Windows Services

• Type services in the search bar and launch the Services utility
• Find Windows Update in the list
• Double-click on it, set the Startup type to Automatic, and click Apply
• Now click on Restart the Service

• Do the same with Background Intelligent Transfer Service

Method 4. Install the Update Manually

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 KB5022303 into the search bar, and press Enter or click Search

• 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 the on-screen instructions
• Restart your system once done.

Method 5. Reset Windows Update Components

• 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

• Wait for the process to finish and restart your PC

Method 6. Repair Install Windows

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