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QTTabBar no longer works on Windows 11 25H2 (build 26200.7462) #431

@yfjuu4

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@yfjuu4

As of 1/1/2026, QTTabBar has stopped appearing in File Explorer on my Windows 11 25H2 system (OS build 26200.7462).

Last week, it suddenly disappeared, and this week I updated to build 26200.7462. I’ve tried installing the latest beta (v1.5.6) as well as several older versions, but none of them show up.

Has anyone found a fix or workaround for QTTabBar on Windows 11 25H2?

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