Windows 11 25H2 Build 26200.6899 causes boot loop on Dell laptop

Question

Windows 11 25H2 Build 26200.6899 causes boot loop on Dell laptop

Sachinthaka 20

After installing the latest Windows 11 25H2 cumulative update (Build 26200.6899), my Dell laptop gets stuck in a boot loop on the Dell logo and never loads Windows.

When I uninstall that update and roll back to the previous cumulative update (Build 26200.6584), everything works fine — Windows loads normally.

Something in Build 26200.6899 is causing a conflict or error during startup.

Does anyone know:

What might be causing this issue?

How can I identify if a specific driver is triggering the problem?

Any known fixes or workarounds for this update?

Thanks in advance for your help!

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Answer 1

Hi, I'm Bernard, a fellow Windows user. I'm happy to help!

I understand the issue you have, there is nothing to worry I am here to assist, Based on your inputs, it seems that there is a driver, software or hardware that is causing incompatibility, in this case, can you please check the System logs on the PC so I can further examine the root cause of the issue?

To share the System logs, please follow the steps in the link below:

Press the Windows key + X, then select "Event Viewer"

Click the drop-down of "Windows logs"

Right-click System > click Filter Current logs > Check: Critical, Warning, and Error > Hit OK

On the right pane, click "Save Filtered Log File As..."

Save the System logs file to your desktop and share it by following the steps from the link:

https://support.microsoft.com/en-us/office/share-onedrive-files-and-folders-9fcc2f7d-de0c-4cec-93b0-a82024800c07

Note: You can also use your preferred cloud storage to upload and share the logs.