Cumulative Update for Windows 10 Version 1909 for x64-based Systems (KB4556799)

Hi,
I don't know why but this update is bugged for me.
whenever i install this update after restarting a white flickering screen appear.
Pls help

Hi gauravpatyal,

Thank you for reaching out to Microsoft Community.

After the restart then white flickering screen, does it stays on that white flickering screen or will the device eventually boots to your regular desktop?

Please try to run these tools on the device to fix system or Windows corruptions then observe if issues persist:

1: Run Surface Diagnostic Toolkit

2: Run System File Checker Tool in Windows 10

If this answer your question, we highly encourage you to inform our Community by clicking on Yes or marking my post as an answer. This will help other members who may have the same issue as you. Otherwise, don't hesitate to update us so we can further assist you.

Kind Regards,

Marrion Y.

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Still not solved 
and no the device doesn't boots to regular desktop
It  stays on that flickering screen.
The only thing i can do is to uninstall the update from BIOS .

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Last updated April 5, 2021 Views 606 Applies to: