Why does my Windows 11 File Explorer flash white?

A recent Windows 11 update (KB5070311) intended to improve dark mode has caused File Explorer to display a white flash when opened.

Is Microsoft fixing the Windows 11 dark mode white flash bug?

Yes, Microsoft has acknowledged the issue and is actively working on a fix for the File Explorer white flash bug.

Can I fix the Windows 11 File Explorer white flash myself?

While waiting for an official fix, you can use a Windhawk mod to restore the normal dark mode appearance in File Explorer.

Home / Technology / Windows 11 Dark Mode Update: File Explorer Flashes White!

Windows 11 Dark Mode Update: File Explorer Flashes White!

2 Dec, 2025

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Summary

Windows 11 update KB5070311 aimed to improve dark mode consistency.
Users now experience a white flash when opening File Explorer in dark mode.
Microsoft acknowledges the bug and is working on a fix for the issue.

Windows 11 Dark Mode Update: File Explorer Flashes White!

Microsoft's latest Windows 11 update, KB5070311, released yesterday, inadvertently introduced a significant bug impacting the File Explorer's dark mode. While the update aimed to bring a more consistent dark theme, including for dialogs related to file operations, it now causes a bright white flash upon opening the File Explorer window. This unexpected visual disturbance is particularly noticeable for users working in low-light conditions.

Described as a "giant white flash" and a "flash bang" by affected users, the issue presents as a brief blank white screen before files and folders load. Microsoft has officially recognized this problem in the update's known issues section and confirmed that its teams are currently working on a fix to resolve the disruptive white flashing.