This tutorial will show you how to change the size of taskbar thumbnail previews for your account in Windows 10 and Windows 11.
The setting in this tutorial no longer works starting with at least Windows 11 version 24H2.
The taskbar is a horizontal bar at the bottom of your desktop in Windows 11 that shows the Start menu, Search, Task View, Widgets, Chat, File Explorer, Microsoft Edge, and Microsoft Store icons aligned to the center by default. The taskbar corner includes the notification area icons, Quick Settings (Win+A), and Notification Center (Win+N) with the clock and calendar.
When you hover the pointer over an icon on the taskbar for an open window, it will show a thumbnail preview of the open window.
If you like, you can...