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October 21st, 2017 11:00

Keyboard Backlight not working after windows 10 1709

I have an Alienware 13 R3 and after the Windows 10 Creator Update 1709 my backlight on my keyboard stopped working. I have checked my device manager and there is a Unknown USB Device (Device Descriptor Request Failed). I have tried uninstalling that device but still not working. 

Any ideas on how to fix this?

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4.4K Posts

October 23rd, 2017 09:00

Hi @jmarbutt,

Make sure you have the latest BIOS version. 

Then check if the light will work by running the AlienFX Tester:

Alienware: Test lights with AlienFX Tester - YouTube  

If the light doesn't work with the tester uninstall and reinstall the command center in a proper way following ALL the steps on this article:

How to Remove and Reinstall the Alienware Command Center | Dell US 

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