Shortly after Microsoft acknowledged that the password button was missing for certain users on the Windows sign-in screen, the company has confirmed a new issue that Windows PC users could face. This time, the problem pertains to a visual glitch affecting the File Explorer in dark mode.
Overview of the File Explorer Issue
According to Microsoft’s recent announcement, some users may notice a disruption in the form of a white screen flash while using File Explorer with dark mode enabled. Here are the key details regarding this issue:
- The bug affects users running Windows 11 versions 24H2 and 25H2.
- This issue may arise following the installation of the KB5070311 update.
- Currently, there is no available workaround other than disabling dark mode.
Conditions Under Which the Issue Occurs
The white screen flash can appear during various actions within File Explorer, including:
- Opening a new tab
- Enabling or disabling the details pane
- Accessing additional details during file copying
- Navigating to and from different sections, such as Home or Gallery
For many users, this issue will be most prominent when they open File Explorer, which often defaults to the Home view.
Microsoft’s Upcoming Updates
Microsoft released the KB5070311 preview update on December 1, 2025, as part of preparations for the cumulative update scheduled for December 9, 2025. This update represents the final major enhancement for Windows 11 in 2026.
How to Disable Dark Mode
If you’re experiencing the white flash issue, you may temporarily disable dark mode until a fix is available. Here’s how you can switch to light mode:

- Open the Start menu.
- Select Settings, or type “Settings”and hit Enter.
- Navigate to Personalization > Colors within the Settings app.
- Choose “Light”from the dropdown next to “Choose your mode”.
Switching to light mode will alleviate the flashing issue, but it may not be a satisfying solution for users who prefer dark mode and its associated benefits.
Future Resolution and Impact on Windows 10
Microsoft has indicated that they will update the documentation once this issue is resolved. Whether the resolution will be addressed before the December 9 cumulative update is yet to be confirmed. Additionally, it’s unclear if Windows 10 devices are experiencing this same issue, considering Microsoft has not provided a preview update for that OS at this time.
User Engagement
We’d love to know your experience! Are you currently using Windows 10, Windows 11, or another operating system? Share your thoughts in the comments below.
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