FIX: Windows 11 Won't Boot after 24H2 Update (Solved).
If you tried to upgrade your system to Windows 11 version 24H2 and after rebooting your system to install the 24H2 update, Windows does not start at all and only displays a black screen or your device manufacturer's logo, continue below to fix the problem.
Symptom: When upgrading Windows 11 23H2 to 24H2 using a Windows 11 Disk Image (ISO) or the Windows 11 Installation Assistant, after the first reboot the system does not start and stays on the manufacturer's logo or a black screen. More specifically, the update process starts normally and installs the latest version of Windows 11, but after rebooting to complete the installation, the system cannot start and freezes with no indication that the system is booting.
Causes:
1. Usually, when Windows fails to boot and gets stuck on the manufacturer's logo or a black screen, it indicates that the system cannot find or read the boot configuration data because they are missing or corrupted.
2. Windows 11 24H2 has one more hardware requirement to install: The Processor must support the SSE4.2 instructions set, otherwise the system cannot boot after upgrading to 24H2.
FIX: Windows 11 does not start the boot process after installing the 24H2 update.*
* IMPORTANT:
1. Before you continue to the instructions below, press and hold down the Power button for 3-5 seconds, to turn OFF your computer. Then turn ON your computer again and ensure that the problem persists.
2. If you encounter the mentioned issue after installing Windows 11 24H2 in a VirtualBox virtual machine, proceed with the instructions below to fix the issue and then upgrade VirtualBox to its latest version before attempting to upgrade the VM again to version 24H2.
3. After fixing the boot problem, run CPU-z and ensure that CPU supports SSE4.2 (Intel) or SSE4A (AMD) instructions, otherwise the system will not boot after the upgrade to Windows 11 24H2.
1. Boot your system from a Windows 11 installation media. *
* Note: If you don't own a Windows 11 Installation media on a USB, read these instructions to create one.
2. During booting, if you receive a message that says "It looks like you started an upgrade and booted from installation media…", click No.
3. At the 1st Windows Setup screen, hold down the SHIFT key and press F10 to open a command prompt window.
4. In command prompt, give the following two commands in order:
-
diskpart
-
list volume
5. Now notice the volume number of the FAT32 partition (e.g. "2" in this example).
6. Now select the FAT32 volume using its number, with this command:*
-
select volume 2
* Note: Replace the number "2" with the FAT32 volume number on your system.
7. Now assign the drive letter "Z" on the FAT32 volume, with this command:
-
assign letter=Z
8. Type "exit" to close the DiskPart tool.
9. Now proceed and format the drive Z: to FAT32, with this command:
- format Z: /fs:fat32
* Note: Press the "Y" key when prompted to proceed with formatting and then Enter when prompted for a volume label.
10. Then give the following command to create the boot files:
- bcdboot C:\windows /s Z: /f UEFI
11. When the boot files are created, type "exit" to close the command prompt window.
12. Close the 'Windows Setup' window to cancel the installation and to reboot the system.
13. Normally, your system will boot normally now to Windows.
That's it! Let me know if this guide has helped you by leaving your comment about your experience. Please like and share this guide to help others.
Frequently Asked Questions
What should I do if my Windows 11 system gets stuck on a black screen after updating to version 24H2?
Press and hold the Power button for 3-5 seconds to turn OFF your computer. Turn it ON again to make sure the issue persists, then follow the steps outlined to fix the boot problem.
Why does my Windows 11 not start after updating to version 24H2?
The system may fail to start if the boot configuration data is missing or corrupted or if the processor does not support the SSE4.2 instruction set.
How can I fix the boot issue after upgrading to Windows 11 version 24H2?
You can fix the issue by booting from Windows 11 installation media, using the command prompt to assign a drive letter to the FAT32 partition, formatting it, and then creating boot files with the `bcdboot` command.
What should I check after fixing the boot problem on my Windows 11 system?
Ensure that your CPU supports SSE4.2 (Intel) or SSE4A (AMD) instructions; otherwise, your system may not boot after the upgrade.
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April 18, 2025 @ 6:24 am
Okay, I tried your idea and changed the 2 drive to fat32 and copied the boot to it and it f'n worked! Why doesn't win11 install take care of that?? It was able to finish installing up to the point where it needed an internet connection. The problem now is the monitor flickers like mad. How could my MSI 1650 d6 card need a nonstandard driver? I have all the latest windows files and bios and this machine worked great before it didn't. I have a ASUS Prime 365m-a, two 16gb ddr4, one m.2 installed. Temps are good. Processor is good. Got any ideas?
January 25, 2025 @ 11:55 pm
I encountered the same problem, but Windows won't even boot from the installation media on USB. Before upgrading from windows 10, I checked compatibility with the PC health tool and it said my PC can run windows 11. Any help would be greatly appreciated.
January 27, 2025 @ 10:11 am
Enter in BIOS settings and set the Windows USB drive as the first boot device. Save and Exit and try to boot again.
November 10, 2024 @ 4:24 am
you are my goat.Thank you for this post. I have wasted 12 hours to debug this, and it is not my, but Microsoft failure. Thank you again.