
However, if the driver is not disabled, you can disable it and then re-enable it. If you see the Enable device option, click on it to enable the driver. In the Device Manager, expand Monitor and then right-click on Monitor driver. Press the Windows logo key + X and then open Device Manager by clicking on it from the menu. You can enable monitor drivers through the device manager in Windows 10. Many times the monitor driver can get disabled on its own, which can cause no brightness issue.

If there is still no slider for brightness in Windows 10, you need to tweak the device manager to get it fixed. This will add a brightness slider to the Windows 10 action center. Adding brightness slider to quick action option And once you add a slider to the quick action option, click on Done. You will see the notification area on the screen, click on Add ➜ Brightness. Now, from the left panel, go to Notifications & actions and then click on Edit your quick actions. Press the Windows logo key + I to launch the Settings app and go to the System section. As without adding it via the Settings app, you won’t see the monitor brightness slider. The first thing to check here is if the display slider for brightness control is enabled or not. Make Sure Brightness Slider is Added to Quick Action Center The solutions given below can help you fix the missing brightness slider in Windows 10 quickly.

The missing slider issue is not as severe as other Windows errors like BSOD or stop code errors. Use Third-Party Applications How To Fix Windows 10 Brightness Slider Missing Issue
