How to change the thumbnail of a folder in Windows 11

This step-by-step tutorial will show you how to change the thumbnail of a folder in Windows 11.

Open File Explorer.
Go to the folder whose thumbnail you want to change.
Right-click on the folder.
Click on Properties.
In the next window, you click Customize.
In the 'Folder pictures' section, you click on Choose File.
In the next window, you select the image you want to use as the new thumbnail for the folder.
Click Open.
Click Apply.
Click OK.