brightness issue.installed Windows 10 on my Swift 3 and the screen brightness won't change

Keti_okru12

I just installed Windows 10 on my Swift 3 and the screen brightness won't change. It's on the highest level while it shows the lowest level. My eyes hurt from this brightness

[Edited the thread to add model name to the title]
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billsey

Fire up Device Manager and verify there are no warnings or errors shown. It might take a driver update to get the brightness change functions working again. We likely can't give more detailed help without knowing just which Swift 3 you have, there have been a lot of them over the years. Your full model number is usually on the same sticker as your serial number, it should look something like SF3xx-xxx-xxxx.