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KB5030211 Fails to Install: 7 Solutions to Fix!

Are you trying to update Windows 10, and KB5030211 fails to install? Learn from this guide how to fix this issue with some of the best ways and install Windows updates successfully.

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Updated on Apr 19, 2024

We often need to install Windows updates to experience the latest computing with optimal performance. In September 2023, Windows 10 released the KB5030211 update to ensure users' security and help them detect issues that affect authentication. This update is handy, but sometimes you face a problem that KB5030211 fails to install on your computer.

Updates might not install for different reasons, like corrupt system files or insufficient space on your computer. No matter why it happens, it's essential to find a simple fix. In this article, EaseUS will give you 7 easy ways to solve problems with installing the KB5030211 update, with clear instructions.

How to Fix Windows 10 Update KB5030211 Fails to Install

Some people often find it difficult to install Windows updates. You need a dedicated solution if you're also struggling to resolve Windows update issues. This section helps you learn how to fix the KB5030211 fails to install error in 7 different ways. Let's explore the solutions and their steps one by one.

Way 1. Check Windows Update Service

Sometimes, the Windows update service is stopped, and you have to start it again. If your Windows cannot install updates, you can check the update services status. You can eliminate KB5030211 update failure issues by following these steps for this technique:

Step 1. Begin by pressing both "Windows + R" keys simultaneously to access the "Run" dialog on your computer. Once the run window appears, type "services.msc" in the bar and hit the "Enter" hotkey or the "OK" option.

open service

Step 2. Once the "Services" window opens, scroll down and double-click on the "Windows Update" option in the list. Then, a new window of "Properties" displays on which you have to select the "Service Type" as "Automatic." Afterward, choose the "Start" widget in the "Service Status" section. Finally, select the "Apply" option and click the "OK" button to save it.

Step 3. Then, go into the "Services" window again and find the "Background Intelligent Transfer Service" option to click on. After that, the same "Properties" window appears, where you have to set "Service Type" as "Automatic" and select the "Start" button from the "Service Status" options. Lastly, click "Apply" and click the "OK" button to let your Windows Update Service run automatically.

service type

Way 2. Run Windows Update Troubleshooter

Utilizing the Windows Update Troubleshooter is a fundamental approach for addressing minor issues within its update services. You can follow these steps one by one to run it properly and fix the "KB5030211 fails to install" problem:

Step 1. First, right-click the "Start" icon at the bottom left corner. After that, select the "Settings" option. Once the setting window opens, choose the "Update & Security" category.


Step 2. Upon doing that, it takes you to the next window, where you must select the "Troubleshoot" option. Then, related options appear, and there you click on the "Additional troubleshooters" option given on the right side.


Step 3. On the next screen, expand the "Windows Update" option and hit the "Run the troubleshooter" button to detect the Windows update issues. Lastly, follow the instructions and restart your computer to fix the problem.

run the troubleshooter

You may also want to learn the following scenarios:

Way 3. Use SFC and DISM Commands

There is a possibility that the "KB5030211 fails to install" issue can appear due to corrupted system files. So, here are two command-based solutions that help to scan and restore the files. Here's how you can perform this fix even if you don't know much about Command Prompt:

Step 1. Initially, press both the "Windows" and "R" keys to open the "Run" dialog box. Type "cmd" in the dialog and hit "OK" to open the Command Prompt. After that, type the "sfc /scannow" command and tap the "Enter" key to run the SFC command for scanning files.

sfc scannow

Step 2. To run the DISM command, if the SFC command fails to fix your problem, type "Dism /Online /Cleanup-Image /CheckHealth" and hit the "Enter" key. Then, copy and paste the "Dism /Online /Cleanup-Image /ScanHealth" command and hit the "Enter" key again. After that, run the "Dism /Online /Cleanup-Image /RestoreHealth" command to complete the process. Finally, restart your computer and update your Windows OS.

check disk health

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Way 4. Download ISO from Microsoft

In any case, if your Windows updates are failing to install on your system, you can try repairing files or installing new Windows. For this, visit the official Microsoft website and download the ISO file. After downloading, you need a USB drive or Compact Disk and installation media creation tool. To save you from any mishap, we recommend you use EaseUS Partition Master Professional, which helps users with its smooth processes. 

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This tool provides the simplest method to create a bootable disk on a USB drive or CD. Moreover, it helps to fix Windows boot issues such as system crashes, screen freezes, and color screen errors. Steps to create a bootable disk with EaseUS Partition Master:

Step 1. To create a bootable disk of EaseUS Partition Master, you should prepare a storage media, like a USB drive, flash drive or a CD/DVD disc. Then, correctly connect the drive to your computer.

Step 2. Launch EaseUS Partition Master, and find the "Bootable Media" feature on the left. Click on it.

Step 3. You can choose the USB or CD/DVD when the drive is available. However, if you do not have a storage device at hand, you can also save the ISO file to a local drive, and later burn it to a storage media. Once made the option, click the "Create" button to begin.

  • Check the Warning message and click "Yes".

Step 4. When the process finishes, you'll see a pop up window, asking if you want to restart computer from the bootable USB.

  • Reboot Now: it means you want to restart the current PC and enter EaseUS Bootable Media to manage your disk partitions without OS.
  • Done: it means you don't want to restart the current PC but to use the bootable USB on a new PC.
Select if you want to boot pc from bootable usb

Note: To use the bootable disk on a new PC, you need to resart the target computer and press F2/F8/Del key to enter BIOS, and set the USB bootable disk as the first boot disk.

Wait patitiently and your computer will automatically boot up from the USB bootable media and enter EaseUS WinPE desktop.

Enter EaseUS WinPE Desktop

Way 5. Clean Up Disk

Extra files and background processes create unnecessary load on your system, gradually slowing down performance. Also, if you have space on the disk, Windows can install new updates. Therefore, you need an efficient tool to clean up your disk and make it run smoothly. There are many tools for this purpose, but EaseUS Partition Master is a dedicated disk management tool with advanced options.

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Now, it's time to learn how to clean up the disk using this tool.

Step 1. DOWNLOAD and install EaseUS Partition Master for free and launch it on your Windows PC.

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On the suite, hover your mouse on "PC Cleaner", click the Download icon to install and launch EaseUS CleanGenius.

Launch EaseUS Clean Genius

Step 2. On EaseUS CleanGenius, select "Cleanup" on the main screen, and click "Scan" to start scanning.

large file cleanup - 1

Step 3. When the scanning process completes, select useless large files and click "Clean" to clean large files.

large file cleanup - 2

Step 4. When EaseUS CleanGenius completes cleaning the files you choose, click "Done" to finish the process.

large file cleanup - 3

Key Features

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Way 6. Disable Antivirus Software

It is often seen that Windows Defender Firewall and other third-party antivirus software consider Windows updates a threat. So, you have to disable them to install the KB5030211 update for your security and authentication. Here are the steps to disable the antivirus from your system:

Step 1. Press the "Windows + I" keys simultaneously to open the "Settings" screen. Then, select the "Update & Security" option from the settings to move to the next screen.

Step 2. Afterward, select the "Windows Security" option from the left panel. Then, choose the "Virus & threat protection" feature from the Windows Security options. After that, select the "Manage settings" option from the right side.


Step 3. Following this, all your Virus & Threat Protection Settings will appear on the screen. Then, turn off the "Real-time protection" option. Allow the switch off permission by clicking "Yes" on the pop-up window. That's it; you have disabled the Windows Defender Antivirus.

Way 7. Manually Download Windows Update

If you don't want to apply different methods to resolve the "KB5030211 fails to install" issue, you can try downloading this Windows update directly. Here's how you can manually download Windows updates according to your PC requirements:

Instructions: Visit the official Microsoft Update Catalog website, then enter "KB5030211" in the search bar and hit the "Search" button to see updates. To proceed, check your "Windows specifications" and "Device specifications" for confirmation. After that, download the relevant version of KB5030211 and install it on your computer. Lastly, restart your computer to apply the update.


To summarize, Windows often fails to install updates due to critical reasons. Similarly, "KB5030211 fails to install" is a common update installation failure that can happen due to corrupt system files, insufficient space, incompatible software or hardware, etc. To solve this issue, we have discussed seven easy solutions with step-by-step guidelines, which help to implement each method precisely.

All these solutions work well, but primarily, you have to go with disk cleanup or installation of new Windows. For that purpose, you need a reliable tool to accomplish the process. Undoubtedly, it's the EaseUS Partition Master toolkit with its impeccable features. Moreover, it allows you to easily create, resize, hide, and manage disk partitions. So, explore this tool and get the wonderful features to help your ventures.

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FAQs About Windows 10 Update KB5030211 Fails to Install

We capture users' queries about different issues to help them with the right guidelines. Here are some FAQs about the "KB5030211 fails to install" issue of the Windows 10 update.

1. Why KB5030211 can't you install a Windows 10 update?

Windows 10 update installation failure arises due to limited disk space, damaged system files, or system errors. There can also be other causes, like poor internet connectivity, update status errors, or conflicting antivirus software.

2. How do I fix Windows installation failure?

If you're struggling with Windows installation failure, follow these step-wise instructions:

  • Open the official Microsoft website and download the Windows 10 ISO file.
  • Launch the EaseUS Partition Master tool on the computer and attach a USB drive.
  • Access the "Bootable Media" from the left panel and create a bootable media disk on your USB.
  • Attach that USB to the crashed Windows computer to repair files or install new Windows.

3. How do I fix Windows 10 21H2 fails to install?

21H2 update of Windows 10 fails to install when antivirus software is on. Follow these steps to turn it off and install the update:

  • Firstly, click "Start" and go to Windows Settings > Update & Security > Windows Security.
  • Then, select "Virus & threat protection" and click the "Manage settings" option.
  • Toggle "Real-time protection" off and try to install the 21H2 update again.

If this method doesn't work, you can use the EaseUS Partition Master tool to resolve all Windows installation failure issues.

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About the Author

Updated by Roxanne

Roxanne is one of the main contributors to EaseUS and has created over 200 posts that help users solve multiple issues and failures on digital devices like PCs, Mobile phones, tablets, and Macs. She loves to share ideas with people of the same interests.

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