File:Windows98.png

Source
Screenshot uploaded by User:MikeRS. User:Shlomital provided an optimised version of the same image.

Fair-use rationale

 * Screenshot that demonstrates the default Windows 98 desktop
 * Not likely to cause any financial damage to Microsoft as they no longer sell or support this product
 * A screenshot is pretty safe territory
 * Wikipedia is a non-profit organisation, downstream providers who are not non-profit will need to consider whether they will take the risk in using this image
 * Clearly used for educational use

This rationale applies to the use of this image on the History of Microsoft Windows, Microsoft, and Windows 98 articles.