A recent bug in Windows 11 has been causing significant disruptions, particularly affecting the Explorer.exe process. Users have reported that when Explorer.exe crashes, their desktop user interface can vanish entirely, including the taskbar. This issue has rendered the Start menu inaccessible for many, as the taskbar is typically the gateway to this essential feature. Microsoft has acknowledged the problem and has incorporated a fix in the optional update, Windows 11 KB5074105, scheduled for release in January 2026.
Explorer.exe plays a crucial role in the Windows operating system, functioning as the Windows shell. When it becomes unresponsive, users find themselves in a challenging situation where the desktop and taskbar either disappear or fail to respond. The only recourse available is to manually access the Task Manager using the shortcut Ctrl + Shift + Esc to restart Explorer.exe. If it is not running, users must initiate a new instance of the process.
The issue specifically impacts Windows installations that have certain startup applications configured. 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.” While Microsoft has not disclosed the specific startup apps that contribute to this problem, users experiencing related performance issues are encouraged to install the optional update. For those operating on Build 26200.7623 or newer, this patch will be applied to their systems, although it is important to note that the rollout will occur gradually.
Microsoft is rolling out fixes for several issues in Windows 11
Following the challenges posed by the Windows 11 KB5074109 update, the release of KB5074105 brings a sense of relief, introducing several noteworthy fixes. One significant issue identified in the January 2026 Update involved Explorer ignoring the LocalizedResourceName entry, which is essential for displaying custom or user-friendly folder names. Even when the folder was correctly set up with all required attributes, Explorer would revert to showing the actual folder name, leading to confusion and disarray in file organization.
For instance, a folder named 2026ProjectsInternal_Final might typically be displayed simply as “Projects” through the desktop.ini configuration. However, due to the bug, users were confronted with the lengthy and cumbersome name, complicating their file management. The KB5074105 update rectifies this behavior, allowing Explorer to read the desktop.ini file correctly and apply custom folder names as intended. Additionally, a fix has been implemented for a bug that caused parts of File Explorer to become unresponsive or sluggish.
Moreover, Microsoft has addressed an issue where the lock screen could become unresponsive, preventing users from interacting with it effectively. This update also aims to resolve instances of black screens that some users experienced. Interestingly, it has been determined that these black screens were not a result of Nvidia’s drivers, but rather linked to a previous Windows Update. Testing has confirmed that the January 2026 update (KB5074109) was responsible for these black screens, but with the latest fixes, users can expect a smoother experience.
As Microsoft continues to refine Windows 11, feedback from users remains invaluable. If you are encountering any issues that have yet to be acknowledged by Microsoft, sharing your experiences could help facilitate further improvements.
