Reinstall Graphics Drivers via Device Manager

Follow these steps to remove corrupted drivers and force a clean installation:

1. Right-click the Start button and select Device Manager.
2. Expand the Display adapters category to view your graphics hardware.
3. Right-click the graphics adapter (e.g., Intel, NVIDIA, or AMD) and select Uninstall device.
4. When prompted, ensure you check the box labeled Attempt to remove the driver for this device and click Uninstall.
5. Restart your laptop immediately to allow Windows to automatically detect the hardware and reinstall a clean, functional driver.
6. Verify the fix by connecting your HDMI cable and confirming that the display signal is received by your external monitor.