Change the desktop background in Windows - Microsoft Support
Whether you prefer a serene landscape, a favorite photo, or a clean solid color, Windows offers flexible options to customize your desktop background to match your style and create a workspace you enjoy using.
Personalize Your Windows Experience With Themes
Windows themes are a combination of desktop background pictures, window colors, sounds, and other elements that allow you to personalize your Windows experience.
Personalize Your Colors in Windows - Microsoft Support
To change accent color: To manually select an accent color, select Manual. Then select a color under Recent colors or Windows colors, or select View colors for an even more detailed option. This option allows you to personalize your Windows experience by applying your chosen accent color to the Start menu, taskbar, and action center.
How to change or delete themes in Windows 10 - Microsoft Support
To change your current theme: Click Start > Settings > Personalization > Themes. Under "Change theme", click the tile to switch to the theme you'd like to use.
Customize the Lock Screen in Windows - Microsoft Support
Learn how to personalize a Windows lock screen with a background photo, slideshow, or app notifications.
Change your Microsoft account picture - Microsoft Support
Your profile photo will appear on apps and devices that use your Microsoft account. To change the picture associated with your Microsoft account: Go to the Your info tab of your Microsoft account dashboard, or select Change photo below. Change photo Select Add a photo or Change photo to search for image files on your device.
Applies To: Outlook.com, Microsoft account dashboard
Change Your Account Picture in Windows - Microsoft Support
You can change your user account picture by either choosing an existing picture or taking a new photo. Here's how. Change your user account picture In the Settings app on your Windows device, select Accounts > Your info or use the following shortcut: Your info Under Adjust your photo, select Choose a file > Browse files to select an existing photo. Or, if your device has a camera, select Open ...
You can change the desktop wallpaper setting after administrator ...
The Prevent changing wallpaper Group Policy prevents users from changing the desktop wallpaper by using Display Properties. However, there are ways of changing the wallpaper setting, such as through Image Preview, which does not involve Display Properties.
Change color contrast in Windows - Microsoft Support
Learn how to make objects on the screen easier to see by setting up and using a high-contrast color scheme.
Change display brightness and color in Windows - Microsoft Support
For example, if you’re watching a video that has a dark scene, followed by a brighter scene (for example, one that shows a bright sunny day), the brightness and contrast may change.