Please increase thumbnails / previews in Windows Explorer from 256 to 512 or larger.

[avviano]

Not sure if Microsoft has completly missed the fact that display screen resolutions are increasing globally, yet even the "View > Extra Large Icons" in Windows Explorer with a resolution of 256px is not adequate and more like standard 20 years ago. Microsoft always fames itself for catering to people with disabilities, but these minute thumbnails in Windows Explorer are a real killer for anyone's eyes, with or without disabilities. Please make this change ASAP.

[#2]

Try update Windows and Graphic Card driver and see if problem persist?
Your issue is feedback and try open start and search for feedback and open the Feedback Hub app and file this issue as a suggestion.

[#3]

@avviano 

Hello accessibility in Windows10 - they work great, but their settings can be difficult to customize.

Do you use accessibility?