Mice LED on after shutdown

Pro_Tactics

Reputable
Nov 11, 2015
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4,530
So i had my computer for about 2 months now and ive enjoyed it.
Today when i went to turn it on i realised the mouse scroll wheel was luminated (red)
Not the whole mouse just the scroll wheel area. The computer was shutdown, ive never noticed this before and i just saw this for the first time. I updated windows the day before, could this be the reason?
I turned off my pc to see if it would happen again and it didn't. Does anyone know why it happened all of a sudden

Mouse: Delux M555 Spiked wired gaming mouse
Mobo: MSI z97sli krait edition

Thanks
 
Solution
Some USB ports are left "live" after shutdown on purpose -- allows you to, for example, charge a cellphone without having to have the PC running. Nothing to worry about.

If it bothers you, unplug your mouse after PC shutdown.