Have you ever encountered the problem of Windows 11 stuck on startup after KB5043145 update? If you have, you come to the right place. You can obtain some effective methods to get rid of this annoying issue in this MiniTool guide.

Windows 11 update KB5043145 causes major issues including that Windows 11 stuck on startup after KB5043145 update. When you start Windows 11, it hangs at the startup logo for several minutes or hours without any obvious reason. At this time, someone may try to force a shutdown, but this method is not conducive to the security of your data. What should you do? This article will fully help you solve this annoying problem and restore your computer to normal use. Keep reading.

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Method 1: Restart the Computer in Safe Mode

Safe Mode is a diagnostic mode for your computer that allows you to start the device with only the necessary drivers. It essentially disables most third-party applications to help determine if the problem is caused by a specific application or a systemic issue. Observing Windows in Safe Mode can help you narrow down the source of the problem and resolve the issue on your device. So, you can try restarting the computer in safe mode.

Step 1: When the Windows is stuck on the startup screen, you need to start your computer from a bootable CD or restart it three or more times in a row until the Preparing Automatic Repair screen appears.

Step 2: After that, go to Advance options > Troubleshoot > Advanced options > Startup Settings > Restart.

Step 3: You can see there are three options to enter Safe Mode. Here you need to press the F4 key on your keyboard.

restart the computer in Safe Mode
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Method 2: Check and Repair Your System

If the problem of Windows 11 stuck on startup after KB5043145 update occurs, you can try to check and repair your system by running the command. It can identify and repair any corrupted system files, or disk errors that may be causing performance problems, crashes, or even preventing your computer from booting properly. Work with the following steps.

Step 1: Restart your computer three times to go to the Preparing Automatic Repair screen.

Step 2: In the Advance options page, choose Command Prompt.

Step 3: Input bootrec.exe/fix in the window and press Enter.

Wait for it to run a system repair and fix the Windows 11 stuck on startup screen issue.

Method 3: Perform a System Restore

You can also try performing a System Restore, which is a system operation that allows your computer to restore to its original state, resolving some issues. You must back up Windows 11 to an external drive to avoid any disasters when using this method. Here is how you can do it.

Step 1: After opening your computer, press the F8 or Shift keys.

Step 2: When Windows Repair Mode is ready, you will be prompted to select a keyboard or to select an account and enter a password. After that, click on OK.

Step 3: In the Advanced options page, click on System Restore to view all the restore points.

Step 4: Select a restore point from before this problem occurred on your computer and click on Next. If you don’t see all the restore points, select Show additional restore points.

You need to wait patiently for it to restore Windows to its previous state.

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Method 4: Clean Reinstall Windows 11

Clean reinstalling Windows helps clean your computer, free up space, and eliminate performance and speed issues. It also helps remove viruses, trojans, malware, and resource-intensive software from your system and eliminates system issues. If you find the problem of laptop stuck on startup screen after KB5034145 update is still here, you can try reinstalling Windows with a CD or USB.

Step 1: Connect the USB drive or DVD disc to a working computer.

Step 2: Download the Windows 11 Media Creation tool on the working computer.

Step 3: After installation ends, select Create installation media for another PC and USB flash drive.

Step 4: Connect the USB or disc to the computer stuck on the startup and change the boot order, so it can boot from the USB or disc. Now you can start clean installing Windows 11.

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Tips:
As mentioned above, you need to back up Windows before doing these tactics. However, if you lost some data that you don’t have backed up, how to get them back? Here I strongly recommend this free data recovery software, MiniTool Power Data Recovery, for you. You can restore lost data easily with this robust tool. It supports recovering almost all kinds of files from various storage devices. By the way, it can retrieve 1 GB of files for free.

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Bottom Line

About how to fix Windows 11 stuck on startup after KB5043145 update, this post lists several ways such as restarting the computer in Safe Mode, performing a System Restore, and so on. Hope they can work for you.

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