Alt key decreases the brightness of the screen how to turn it off?

Hi all

I own a Lenovo T440S, it works on windows 8. So today, I accidentally spilled tea on the keyboard, but it seems to work very well. He should at least given that this laptop is designed to support it.

Everything seems to work very well, but my left alt key now decreases the brightness of the screen every time I click on it.

Can someone tell me how I can stop this? It's so embarrassing to have the brightness down whenever I use it.

Hi Bianca,.

Thanks for posting your query in Microsoft Community.

According to the description of your problem, if this behavior has started to occur after you had spilled tea on the keyboard, then it might be a hardware problem with the specific key. The brightness options are provided with the "fn" in Lenovo thinkpad.

I suggest you begin the diagnostic system in the Web site of the manufacturer for this model only. and check if it helps.

ThinkPad T440S Support

If the problem persists, then I suggest you to contact Lenovo's Thinkpad technical support for assistance.

Lenovo: Contact us

Hope this information is useful. Please do not hesitate to post where you get problems with Windows in the future, we will be happy to help you.

Tags: Windows

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