After the Windows 11 24H2 update installed on my desktop, my taskbar became completely unresponsive. I could move my mouse cursor over the Start button, the system tray, pinned apps — nothing responded to clicks. The taskbar was visible, looked normal, but was completely dead. I couldn't open anything from it.
Restarting the computer fixed it temporarily — for about 20 minutes, then the taskbar froze again. This happened three times before I stopped restarting and started actually diagnosing the problem.
Here's what I found, and the specific fix that stopped the freezing permanently.
The Exact Cause: Explorer.exe Memory Leak in Windows 11 24H2
Windows 11 24H2 introduced a redesigned taskbar rendering engine that handles animations, transparency effects, and widget previews differently from previous versions. The new rendering engine has a memory leak in explorer.exe — the process that runs the taskbar, desktop, and File Explorer — specifically triggered by the new "Snap Layouts" hover preview feature that 24H2 enabled by default.
Here's what happens in sequence: when you hover over a taskbar button long enough to trigger the Snap Layouts preview (the window arrangement grid that appears above taskbar icons), the 24H2 rendering engine allocates memory for the preview animation but fails to release it after the preview closes. Every hover event that triggers a preview adds a small amount of unreleased memory to explorer.exe.
Over 15 to 25 minutes of normal use, explorer.exe accumulates enough unreleased memory that it can no longer process new input events — which is why the taskbar becomes visually present but completely unresponsive to clicks. A restart clears the memory, which is why restarting appears to fix it, but the leak resumes immediately and the taskbar freezes again on the same timeline.
The Fix — Two Steps, Permanent Resolution
Step 1 — Disable Snap Layouts hover preview to stop the memory leak trigger
Press the Windows key > Settings > System > Multitasking > find "Snap windows" > expand the section > uncheck "Show snap layouts when I hover over a window's maximize button."
This disables the specific hover behavior that triggers the memory leak in explorer.exe. After making this change, the memory accumulation stops — explorer.exe runs at a stable memory level indefinitely instead of climbing until it freezes.
Important: this does not disable Snap Layouts entirely. You can still use Snap Layouts by pressing Windows key + Z, which opens the layout picker without using the hover-triggered preview that causes the leak. You're only disabling the hover trigger, not the feature itself.
Step 2 — Restart explorer.exe manually to clear the current accumulated memory without restarting your computer
Right-click on the taskbar > if the taskbar is unresponsive, press Ctrl + Shift + Esc to open Task Manager directly (this bypasses the taskbar entirely).
In Task Manager > find "Windows Explorer" under the Processes tab > right-click > "Restart."
Explorer.exe will restart in about 3 to 5 seconds. Your taskbar will disappear briefly and reappear. This clears the currently accumulated leaked memory without requiring a full system restart — and since you've already disabled the Snap Layouts hover trigger in Step 1, the memory leak won't resume after the restart.
Confirming the Fix Is Working
Open Task Manager and click on "Windows Explorer" in the process list. Watch the Memory column. Under normal conditions with 24H2 before the fix, explorer.exe memory climbs steadily from around 80MB to 200MB+ over 15-25 minutes. After disabling the Snap Layouts hover trigger, it should stay stable between 80MB and 120MB regardless of how long you use the computer.
If you see memory still climbing after the fix: check whether you have any third-party taskbar enhancement tools installed — apps like TaskbarX, StartAllBack, or ExplorerPatcher. These tools hook into explorer.exe and can independently trigger the memory allocation issue even after the Snap Layouts hover trigger is disabled. Temporarily disabling these tools will confirm if they're contributing.
Why Restarting the Computer Fixes It Only Temporarily
When you restart, Windows loads a fresh explorer.exe process with no accumulated leaked memory. The taskbar works normally. But the Snap Layouts hover trigger is still enabled, so the memory leak immediately resumes. Within 15 to 25 minutes of normal use, you're back to the same frozen taskbar — which is exactly the pattern I was seeing before I found the root cause.
This is how I confirmed that the issue was specifically memory-related rather than a configuration problem: the consistent 15-25 minute freeze cycle after every restart is the exact signature of a memory leak that hits its threshold on a predictable timeline.
One Additional Step for Users Who See the Taskbar Freeze Immediately After Login
A small number of users report the taskbar freezing within 1 to 2 minutes of logging in — much faster than the 15-25 minute pattern described above. This faster freeze has a different trigger: a corrupted widget data cache that 24H2 creates during the update.
If your taskbar freezes within 2 minutes of login: open Task Manager > End Task on "Windows Widgets" (separate from Windows Explorer) > then navigate to C:\Users[YourUsername]\AppData\Local\Packages\MicrosoftWindows.Client.WebExperience_cw5n1h2txyewy\LocalCache and delete all files inside the LocalCache folder (not the folder itself, just its contents).
Restart your computer. The widget cache rebuilds from scratch on login, and the corrupted data that was causing the immediate freeze is gone. Combined with disabling the Snap Layouts hover trigger from Step 1, both freeze patterns are addressed.
Pro Tip: Create a One-Click Task to Restart Explorer.exe Without Opening Task Manager
After dealing with this issue, I created a simple batch file that restarts explorer.exe with a single double-click — useful for the period between identifying the problem and applying the permanent fix, or for any future situation where the taskbar becomes unresponsive.
Open Notepad and type exactly this:
taskkill /f /im explorer.exe start explorer.exe
Save the file as "restart-explorer.bat" on your desktop. When the taskbar freezes, you can double-click this file directly from the desktop (right-click the desktop > Show more options > Run as administrator) to restart explorer.exe without needing to open Task Manager through keyboard shortcuts.
I kept this file on my desktop for two weeks after the 24H2 update while I was still diagnosing the issue. It gave me a fast recovery path without needing a full restart — which saved a significant amount of time and frustration during the diagnostic process.
Last updated: July 2026. Steps are specific to Windows 11 24H2. Microsoft may address the explorer.exe memory leak in a future cumulative update — check Windows Update for the latest patches before applying manual fixes. The batch file method requires administrator privileges to execute correctly.
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