Then click the “Themes” button to the right to show the “Themes” settings at the right side of the “Settings” app window. To change the theme in Windows 11, open the “Settings” app window and then click the “Personalization” button at the left side of the screen to show the personalization settings for your computer to the right. This video lesson is from our complete Windows 11 tutorial, titled “ Mastering Windows Made Easy v.11.” Overview of How to Change the Theme in Windows 11: This video lesson, titled “ Themes Settings in Windows 11,” shows how to change the theme in Windows 11. QuickBooks Desktop (PC/Windows) 2022-2015.Mac OS Ventura-Mojave Keyboard Shortcuts.