How to change your desktop background on any major operating system
Changing your desktop background is one of the fastest ways to personalize your computer. On Windows, Mac, and Linux, the process takes less than a minute and requires no special software — you use built-in settings that come with your operating system.
The exact steps depend on which system you use, but the principle is the same: you open your display or personalization settings, point to an image file on your computer, and confirm. You can use photos you've taken, images you've downloaded, or the default pictures that came with your system.
Key Takeaways
- Windows users right-click the desktop, select "Personalize", then choose "Background" to pick an image from your computer or the built-in collection.
- Mac users open System Settings, go to "Wallpaper", and drag an image from their Photos library or a folder directly onto the preview.
- Linux users access background settings through their desktop environment's settings panel — the exact location varies by distribution and desktop type.
- You can use any image file format your system supports, including JPG, PNG, and BMP, as long as the file is stored somewhere your computer can read it.
- Most systems let you set different backgrounds for each monitor if you use multiple displays.
Changing your background on Windows 10 and Windows 11
Right-click anywhere on your desktop where there are no open windows or icons. A menu will appear. Select "Personalize" near the bottom of that menu.
The Settings window opens to the Personalization section. On the left side, click "Background". You will see a dropdown menu at the top that says "Personalize your background". Click it and choose from three options: "Picture", "Solid color", or "Slideshow".
If you choose "Picture", Windows shows you a gallery of built-in images. Scroll through and click any image to set it as your background. If you want to use your own photo, click "Browse" at the bottom, navigate to the folder where your image is stored, select it, and click "Choose picture".
If you choose "Slideshow", Windows will rotate through a folder of images at an interval you set. Click "Browse" to pick which folder to use, then set how often the image changes — options range from 1 minute to 1 day.
Changing your background on Mac
Click the Apple menu in the top-left corner and select "System Settings". In the sidebar on the left, click "Wallpaper".
The Wallpaper window shows thumbnails of available images organized by category — Dynamic, Light, Dark, and Collections. Click any thumbnail to preview it on your screen. If you like it, click "Set" to make it your background.
To use your own photo, open Finder and navigate to the image you want. Drag it directly into the Wallpaper window, or click the "+" button at the bottom of the Wallpaper window to browse your computer. You can also drag images from your Photos library directly into the preview area.
If you have multiple monitors, you can set different backgrounds for each one. After selecting an image, click the dropdown menu that says "All Displays" and choose which monitor to apply it to.
Changing your background on Linux
Linux background settings vary depending on which desktop environment you use — GNOME, KDE Plasma, XFCE, and others each have different interfaces. The most common is GNOME, which powers Ubuntu and many other distributions.
On GNOME, click "Activities" in the top-left corner, type "Settings", and open the Settings application. Click "Appearance" in the sidebar. Under "Background", you will see thumbnails of available images. Click any one to set it as your background.
To use your own image, click the folder icon next to the thumbnails, navigate to where your image is stored, select it, and confirm. Some GNOME versions also let you drag and drop images directly onto the background preview.
On KDE Plasma, right-click the desktop and select "Configure Desktop". Click the "Wallpaper" tab, then choose from the available images or click "Browse" to select your own. On XFCE, right-click the desktop, select "Desktop Settings", and use the "Background" tab to pick an image.
What image formats and sizes work best
All three major operating systems support JPG, PNG, BMP, and GIF files as backgrounds. Windows also accepts TIFF and WebP. Mac accepts HEIF and JPEG2000 in addition to the common formats. Linux support depends on your desktop environment but typically includes all standard formats.
Your image should match your monitor's resolution for the sharpest appearance. A 1920×1080 image works well on a standard 1080p monitor. If your image is smaller than your screen, your system will either stretch it (which can look blurry) or tile it (repeat it across the screen). If it is larger, your system will scale it down.
Most systems automatically center or fit the image to your screen, so you do not need to resize it yourself before setting it as a background. However, if you want precise control over how it appears, you can crop or resize the image using any photo editor before setting it.
Using slideshow backgrounds and dynamic wallpapers
Windows Slideshow mode rotates through a folder of images at an interval you choose. To set it up, right-click the desktop, select "Personalize", click "Background", and choose "Slideshow" from the dropdown. Click "Browse" to select a folder full of images, then set the interval — 1 minute, 10 minutes, 30 minutes, 1 hour, 1 day, or when you log in.
Mac offers Dynamic wallpapers that change throughout the day, shifting from light to dark as the sun moves. These are built into the system and change automatically. You can also create a slideshow by selecting a folder of images in the Wallpaper settings and choosing how often to change them.
Linux slideshow support depends on your desktop environment. GNOME does not have a built-in slideshow feature, but KDE Plasma does — right-click the desktop, select "Configure Desktop", click the "Wallpaper" tab, and choose "Slideshow" as the wallpaper type.
Troubleshooting background changes that do not stick
If you set a background and it reverts to the default after restarting, the most common cause is that your system cannot read the image file. Make sure the image is in a supported format and stored in a location your user account can access — avoid setting backgrounds from external drives or network locations that may not be available at startup.
On Windows, if a background will not change, try moving the image to your Pictures folder and setting it from there. On Mac, make sure the image is not locked — right-click it, select "Get Info", and uncheck "Locked" if it is checked. On Linux, check that your user account has read permissions for the image file.
If you are using a work or school computer, your administrator may have restricted background changes through group policy (Windows) or configuration management (Mac and Linux). In that case, you will not be able to change the background without administrator permission.
Frequently Asked Questions
Can I set a different background for each virtual desktop or workspace?
Windows does not natively support different backgrounds per virtual desktop. Mac does — each Space can have its own background. On Linux, support depends on your desktop environment; GNOME does not support it, but KDE Plasma does.
What if my image is too small for my screen?
Windows and Mac will stretch a small image to fill your screen, which can make it look blurry. Linux behavior varies by desktop environment. For the best appearance, use an image that matches or exceeds your monitor's resolution. You can resize images using free tools like GIMP or online services before setting them as backgrounds.
Can I use a video as my desktop background?
Windows does not support video backgrounds natively. Mac does not either. Some Linux desktop environments like KDE Plasma have experimental video wallpaper support, but it is not standard. Third-party software exists for all three systems, but it requires installation and configuration beyond the built-in settings.
How do I remove a background and go back to a solid color?
On Windows, open Personalize, click Background, and choose "Solid color" from the dropdown. On Mac, open Wallpaper settings and select one of the solid color options. On Linux, the process varies by desktop environment, but you can usually select a solid color option in the background settings.
Will changing my background affect my computer's performance?
No. A static background uses negligible system resources. Slideshow backgrounds use slightly more because your system reads and displays new images at intervals, but the impact is not noticeable on modern computers. Dynamic wallpapers on Mac have minimal performance impact.