10 Best Ways to Fix Update KB5027303 Not Installing/Downloading on Windows 11

Windows 11, with its sleek interface and enhanced features, relies on regular updates to maintain optimal performance and security. However, users occasionally encounter challenges when attempting to install specific updates, such as KB5027303. In this guide, we’ll explore the top ten solutions to address issues related to the installation or downloading of the KB5027303 update on Windows 11.

Check Internet Connection

1. Check Internet Connection

Before delving into complex solutions, ensure that your internet connection is stable and reliable. A poor or intermittent connection can lead to failed downloads or installations. Restart your router, run a speed test, and consider connecting to a different network if possible.

2. Restart Your PC

A simple yet effective solution, restarting your computer can often resolve update-related issues. This action helps clear temporary files, refresh system processes, and create a clean environment for the update process.

3. Run Windows Update Troubleshooter

Windows 11 includes built-in troubleshooters designed to identify and resolve common issues. Open Settings, navigate to “System,” and then “Troubleshoot.” Run the Windows Update troubleshooter, which can automatically detect and fix problems preventing the KB5027303 update from installing.

4. Check Available Disk Space

Insufficient disk space can hinder the installation of updates. Ensure that your system has enough free space by removing unnecessary files or programs. You can use the built-in Disk Cleanup tool or manually delete unneeded files.

5. Disable Antivirus Software

Sometimes, antivirus programs can interfere with the update process. Temporarily disable your antivirus software, attempt to install the KB5027303 update, and re-enable the antivirus once the update is successfully installed.

6. Manually Download and Install the Update

If the standard Windows Update process is failing, consider manually downloading and installing the KB5027303 update. Visit the official Microsoft Update Catalog website, search for the update, download the installer, and run it on your system.

7. Reset Windows Update Components

Corrupted Windows Update components can lead to installation failures. Open Command Prompt as an administrator and run the following commands one by one to stop related services, rename folders, and restart the services:


net stop wuauserv

net stop cryptSvc

net stop bits

net stop msiserver

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

ren C:\Windows\System32\catroot2 catroot2.old

net start wuauserv

net start cryptSvc

net start bits

net start msiserver


8. Install in Clean Boot Mode

Performing a clean boot helps eliminate potential conflicts with third-party software. Open System Configuration (msconfig), navigate to the “Services” tab, check “Hide all Microsoft services,” then click “Disable all.” Similarly, disable startup items in the “Startup” tab. Restart your PC and attempt to install the KB5027303 update.

9. Utilize System File Checker (SFC) and DISM

Corrupted system files can impede updates. Run the System File Checker (SFC) and Deployment Image Service and Management Tool (DISM) to scan and repair system files. Open Command Prompt as an administrator and run the following commands:


sfc /scannow

DISM /Online /Cleanup-Image /RestoreHealth


10. Seek Professional Assistance

If all else fails, consider seeking assistance from Microsoft Support or visit the official Microsoft community forums. Professional support can provide personalized guidance based on the specifics of your system and update issues.


Troubleshooting Windows updates, including KB5027303 on Windows 11, requires a systematic approach. By following these ten solutions, users can address common issues preventing the installation or downloading of updates. Whether it’s checking internet connectivity, performing a clean boot, or utilizing built-in troubleshooting tools, these steps contribute to a more seamless update experience, ensuring that your Windows 11 system stays current and secure.