Disable Thumbnails in File Explorer on Windows 10


Target issue: popup thumbnail previews of current windows that are displayed over bottom of the screen.

NOTE: a hack to disable the feature is currently unavailable and this hack creates a delay for appearance of popup thumbnails from when mouse cursor is placed on a taskbar button.

  1. Run Registry Editor, regedit
  2. Navigate to “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced” from directory tree on the left
  3. Create DWORD (32bit) key named “ExtendedUIHoverTime” inside the “Advanced” directory
  4. Change the key’s value to 30000.

Above procedure changes period of delay (in milliseconds) before Thumbnail popup is displayed to 30 seconds.


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