How to Fix KB5017859 fails to install Windows 11 [Steps]

What is ‘Windows Update KB5017859 fails to install’ issue in Windows 11?

If you are experiencing KB5017859 fails to install Windows 11 issue while installing Windows Update KB5017859 in Windows 11 computer, and searching for ways to fix, then you are in right-place for the solution. You will be guided with easy steps/methods to resolve the issue. Let’s starts the discussion.

‘KB5017859 fails to install’ issue:

Microsoft regular releases updates and patches for their all Microsoft Windows operating systems to fix all known issues, and add several new features and performance improvements to Windows computer. It is quite simple to download and install latest Windows update via Windows built-in Settings App or through Microsoft Update Catalog official site. However, several users reported they faced Windows Update KB5017859 failed to install issue in computer while they tried to install Windows Update KB5017859 in Windows 11 computer.

The possible reasons behind the issue can be the corrupted Windows update components, corruption in Windows system files or registry, corrupted Windows services, interference of antivirus/firewall program, and other issues. One possible way to fix the issue is to perform Windows Update component reset operation in computer, but there is also some other possible solutions to fix the issue as mentioned in the post. Let’s go for the solution.

How to fix KB5017859 fails to install Windows 11?

Method 1: Fix Windows Update KB5017859 failed to install issue with ‘PC Repair Tool’

‘PC Repair Tool’ is quick & easy ways to find and fix BSOD errors, DLL errors, EXE errors, problems with programs/applications, malware or viruses infections in computer, system files or registry issues, and other system issues with just few clicks.

⇓ Get PC Repair Tool

Method 2: Run Windows Update troubleshooter

Windows built-in Windows Update troubleshooter can resolve the issue.

Step 1: Open ‘Settings’ app in Windows PC via Windows Search Box and go to ‘System > Troubleshoot > Other Troubleshooters’

Step 2: Find and select ‘Windows Update’, and click ‘Run’ to run the troubleshooter and follow on-screen instructions to finish troubleshooting. Once done, check if the issue is resolved.

Method 3: Restart Windows Update services

You can restart Windows Update service and its dependencies services in computer to fix the issue.

Step 1: Open ‘Services’ app in Windows PC via Windows Search Box

Step 2: Find and right-click ‘Windows Update’ service, and select ‘Start/Restart’ option to restart the service

Step 3: Or double-click ‘Windows Update’ service to open its Properties. Select ‘Automatic’ from ‘Startup Type’ dropdown, and hit ‘Start’ button under ‘Service Status’ section, and then hit ‘Apply > Ok’ button to save the changes.

Step 4: Repeat the same step to restart ‘Background Intelligent Transfer Service (BITS)’, and then restart your computer, and then check if the issue is resolved.

Method 4: Disable your antivirus/firewall

Interference of antivirus/firewall could be a reason behind the issue. You can fix the issue by disabling your antivirus/firewall program in computer, and then check if it works for you.

Method 5: Run SFC Scan and DISM Scan

You can run SFC scan and DISM scan in computer to repair corruption in system files and system image to fix this error.

Step 1: Type ‘cmd’ in Windows Search Box and press ‘CTRL + SHIFT + ENTER’ keys on keyboard to open ‘Command Prompt as Administrator’

Step 2: Type the following commands and hit ‘Enter’ key after each to execute.

sfc /scannow

DISM /Online /Cleanup-Image /CheckHealth

DISM /Online /Cleanup-Image /ScanHealth

DISM /Online /Cleanup-Image /RestoreHealth

Step 3: Once executed, restart your computer, and check if the issue is resolved.

Method 6: Perform Windows Update Components reset

Another way to fix the issue is to perform Windows update component reset in order to reset corrupted Windows update components.

Step 1: Open ‘Command Prompt as Administrator’ using above method, type the following commands and hit ‘Enter’ key after each line to execute them

net stop bits

net stop wuauserv

net stop appidsvc

net stop cryptsvc

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

rmdir %systemroot%\SoftwareDistribution /S /Q

rmdir %systemroot%\system32\catroot2 /S /Q

regsvr32.exe /s atl.dll

regsvr32.exe /s urlmon.dll

regsvr32.exe /s mshtml.dll

netsh winsock reset

netsh winsock reset proxy

net start bits

net start wuauserv

net start appidsvc

net start cryptsvc

Step 2: Once executed, restart your computer and check if the issue is resolved.

Method 7: Use Media Creation Tool to perform update

If the issue is still persist, you can try to fix the issue by perform Windows upgrade using Media Creation Tool.

Step 1: Open your browser and visit ‘Microsoft official site’ and download Windows installation media from there

Step 2: Double-click on installer and confirm UAC prompt if appeared, agree to terms and hit ‘Next’, and select ‘Upgrade this PC now’, and hit ‘Next’

Step 3: Follow on-screen instructions to finish upgrade and once done, check if it works for you toward resolving the issue.

Conclusion

I hope this post helped you on How to fix Windows Update KB5017859 fails to install issue in Windows 11 with easy ways. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.

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