Windows gives you a preview of the application window when you hover your mouse cursor over the taskbar,, and it hides the preview when you remove the cursor from the taskbar. While the system comes with the default time to show a live preview, you can still change this time on Windows 11 or 10.
The default time to display the preview using its taskbar thumbnail is 0. But you can set it at, say, 100 milliseconds, 1000 milliseconds (1 second), 5000 milliseconds, etc., with a Registry tweak. The higher the Value, the longer it will take to show the live preview.
How to Change Mouse Hover Time to Display Taskbar Thumbnail Live Preview in Windows 11 and 10?
On a side note, if you set a very long delay time will disable the feature of getting a live preview of the application by hovering the mouse cursor on the taskbar. Moreover, this tweak will not work if you have disabled the peek preview (or show desktop) on Windows 10 or offer desktop feature on Windows 11.
To change the mouse hover time to show Taskbar Thumbnail Live Preview in Windows 11 or 10, use these steps:-
Step 1: To Begin, Open Registry Editor.
Step 2: In the Windows Registry Editor window, browse to the following key in the left sidebar:
Step 3: After this, you need to right-click on the Advanced folder and go to New > DWORD (32-bit) Value.
Step 4: Name the newly created REG_DWORD as ThumbnailLivePreviewHoverTime.
Step 5: Now, double-click on the ThumbnailLivePreviewHoverTime REG_DWORD and select the Decimal as Base. Now, enter the delay time in the Value data text field, such as 100, 200, 500, etc.
Step 6: Click OK and restart your system to apply the changes.
When you’re done with all the above steps, place the mouse cursor on the thumbnail preview of an application (such as File Explorer, Notepad, etc.). You can see the delay time for live previewing that particular application.
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