🔍 On Windows: Right-click desktop → Display settings → Advanced display. On macOS: Apple menu → About This Mac → Displays. Where to Find High-Quality High-Res Wallpapers ✅ Best free sources | Site | Notes | |------|-------| | Unsplash | Professional photography, huge 4K+ options | | Pexels | Free stock photos & abstract backgrounds | | Wallhaven | Massive user-uploaded collection, filter by resolution | | InterfaceLIFT | Curated for desktop use | | Simple Desktops | Minimalist, high-res vector style | ✅ Paid / premium | Site | Notes | |------|-------| | Wallpaper Engine (Steam) | Animated & 4K live wallpapers | | ArtStation | Buy from digital artists | | DeviantArt | Filter by “High resolution” and free/non-free |