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If you cannot find it, write Device Manager on the search bar and click on the result.
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An outdated, corrupted, or incompatible driver is the primary source of all your problems. Typically, you can trace your laptop screen brightness issue back to the drivers. Instead of making any massive changes or re-installing your Windows 10, try the following methods to fix your error. If you have just upgraded to Windows 10, there is a high chance that you are finding it hard to adjust the brightness of your screen. How to Fix Laptop Brightness on Windows 10?
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