Disable or Enable Thumbnail Previews in MS File Explorer Windows 10, this Solution is also suitable for Windows 8.1 and 7!
In the Windows 10 Control Panel please open the Folder Options the new name is File Explorer Options. (... see Image-1 Arrow-1 to 3)
Click on the View tab (... see Image-1 Arrow-4) and set the corresponding check mark the Always show icons, never Thumbnails option! To show or hide the Thumbnails in MS Windows Explorer. (... see Image-1 Arrow-5)
Rather than thumbnail image previews of files and folders. Use this setting if thumbnail previews on Windows 10 are slowing down your computer, or if you do not need thumbnail.
FAQ 188: Updated on: September 3th 2017 20:08