How to fix
KB5030300 fails to install
on Windows

Hello. I tried to install the latest KB5030300 update for Windows 10 but the process failed. Is there a way to fix this?

A few users have had installation troubles with the KB5030300[ref en-1] update for Windows 10, which seeks to make quality enhancements and improve the taskbar search box experience. Users may be impacted by this problem in a number of ways, which may annoy and frustrate them as they go about their everyday computing tasks.

The enhanced taskbar search box experience is one of the main concerns that this update addresses. However, users could not receive this improvement if the update fails to install properly. One of the most useful tools for quickly locating apps, files, settings, and web searches is the search box on the taskbar. Without this enhancement, users might still struggle with a less effective search experience, which could have an impact on their productivity and usability.

Additionally, this update deals with a problem exclusive to Microsoft Excel. Users may still have issues when attempting to share a file in Outlook as a PDF if the update is unable to install. For those who frequently use these Microsoft Office programs for work or personal needs, this issue can be quite problematic. Workflow disruptions and irritation can result from the inability to distribute files as PDFs.

To address the installation issue, users may need to explore various troubleshooting steps. Potential solutions involve checking for system compatibility issues, ensuring adequate disk space, disabling third-party software conflicts, or using Windows Update Troubleshooter.

In this guide, you will find 7 steps that should help you fix KB5030300 fails to install in Windows 10. You can also run a maintenance tool like [d1] that can fix most system errors, BSODs,[ref en-2] corrupted files, and registry[ref en-3] issues. Otherwise, follow the step-by-step instructions below.

Method 1. Run the Windows Update Troubleshooter

• Press the Windows + X keys and go to Settings.
• Go to Update and Security.
• Click Troubleshooter.
• Select Additional troubleshooters.

• Run the Update troubleshooter.
• Restart.

Method 2. Fix 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 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. Update Drivers

• In the search box on the taskbar, enter device manager, then select Device Manager.
• Select a category to see the names of devices, then right-click the one you’d like to update.
• Select Search automatically for updated driver software.
• Select Update Driver.

• If Windows doesn't find a new driver, you can try using an automatic tool like [rev id="DriverFix"] which can find the best drivers for your system.

Method 5. Install the Update Manually

• Open your browser and go to the Microsoft Update Catalog.

• You will be presented with several versions of the KB5030300 update.
• Find the correct update for your OS version (you can check it by right-clicking Start and picking System > Windows specifications > Version is what you are looking for) and click Download.
• Follow the on-screen instructions and install the update.
• Reboot your system.

Method 6. Try Clean Boot

• Open the Search menu, type in system configuration, and press Enter.
• Under the Services tab, tick the Hide all Microsoft services box.
• Click on Disable all button.

• Head over to the Startup tab and click on Open Task Manager.
• Select a third-party program and click on Disable at the top.
• Repeat this step to disable all third-party apps and programs.
• Restart your PC to enter the clean boot state and see if the issue persists.
• If the issue disappeared in the clean boot state, then you can be certain that a third-party app is causing it.
• Go through all recently installed apps or programs and remove them one by one.

Method 7. Use Media Creation Tool

• Visit the official Microsoft website and download Windows 10 installation media.

• Double-click the installer and select Yes when UAC shows up.
• Agree to terms and click Next.
• Select Upgrade this PC now and select Next.
• Proceed with on-screen instructions.
• Your PC will restart.