A recent issue in Windows 11 has been identified that causes explorer.exe to crash, resulting in the disappearance of the desktop user interface, including the taskbar. This problem can hinder access to the Start menu, creating a significant inconvenience for users. Microsoft has acknowledged this issue and has provided a resolution through Windows 11 KB5074105, which is an optional update scheduled for January 2026.
The role of explorer.exe is crucial as it functions as the Windows shell. When it becomes unresponsive, users may encounter a system that is nearly unusable—effectively causing the desktop and taskbar to vanish unless they manually restart explorer.exe via Task Manager (by pressing Ctrl + Shift + Esc) or initiate a new instance of it.
The problem appears to be prevalent with both the January 2026 update and earlier versions of Windows. Fortunately, installing the optional update KB5074105 can effectively resolve these crashing issues.
It is important to highlight that the crashing of explorer.exe specifically impacts systems with certain applications set as startup items. According to Microsoft, “This update addresses an issue where explorer.exe might stop responding (hang) the first time you sign in to your PC if certain apps were configured as startup apps. This could make the taskbar not appear, ” as stated in their support documentation.Learn more here.
Although Microsoft has not provided a detailed list of the startup applications responsible for this issue, it is advisable for users experiencing related performance problems to consider the optional update. If you are running Build 26200.7623 or newer, the update should be automatically applied to your system.
Bear in mind, the rollout of the explorer.exe fix is gradual, which means it may not reach all devices immediately.
Current Fixes Being Rolled Out by Microsoft for Windows 11
Following the complications associated with the prior Windows 11 KB5074109 update, the rollout of the recent optional update (KB5074105) brings welcome stability along with significant improvements.
Reports indicate that during the January 2026 Update, a bug was discovered where Explorer would ignore the LocalizedResourceName entry designed for displaying custom folder names. Even when correctly configured, the folder would display its original name instead of the intended friendly name.
This behavior resulted in situations where folders that should have been easily recognizable were displayed with unwieldy names, complicating user navigation. The reset of this functionality is a key feature of the KB5074105 update, allowing save files and folders to display as intended.
Moreover, the update patches additional issues, including a bug that could render parts of File Explorer unresponsive or slow to react. Users also reported that the lock screen occasionally became unresponsive, preventing interaction.
Additionally, users experiencing black screen issues will find relief with this update. Initial investigations linked the problem to Nvidia drivers; however, it has since been identified as related to a Windows update. Tests confirm that the January 2026 update (KB5074109) was the source of the black screen problem, which is now resolved.
Are there any lingering issues in Windows 11 that you feel have not yet been recognized by Microsoft? We invite you to share your experiences in the comments section below, and we will ensure your feedback reaches Microsoft.
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