Fix Screen Brightness Not Working in Windows 10/11 | 100% Working (2025)

Having trouble adjusting your screen brightness on Windows 10 or Windows 11? Slider missing? Brightness keys not working? Don’t worry — in this video, Austin from Windows Fixer walks you through all working methods to fix the brightness control issue step-by-step. ✅ Covers both laptops and desktops ✅ Works on Intel, AMD, NVIDIA, and integrated graphics ✅ Updated for Windows 10, 11 (2021–2025) ✅ Includes driver fix, registry tweak, and troubleshooting tips 🔧 Fixes Included: Update/Reinstall GPU drivers Monitor driver reset using Generic PnP Monitor Registry edit with FeatureTestControl Power troubleshooter via command External vs internal graphics explained 👇 Drop your laptop or GPU model in the comments if you're still stuck! 📌 Related Commands: "msdt.exe /id PowerDiagnostic"