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  1. Keyboard Backlight not working in Sony VAIO S after upgrade to …

    Based on the description, it appears that backlight is not working on the Sony VAIO S keyboard after upgrading to Windows 8.

  2. Keyboard Backlight ?? - Microsoft Community

    Feb 7, 2018 · The BackLight on my Windows 10 Toshiba laptop has stopped working? Please advise. Mary