how do i fix Unknown device and SM Bus Controller missing update

[Microsoft Windows]

I have a Black Widow V3 TenKeyless My specs are:Intel(R) i7-4790K CPU 4.00GHz16.0. GB DORISamsung SSD 850 EVO 120GBNVIDIA GeForce GTX 970My Tab key number "1" key and I think Alt keys dont workAlso it would scroll on its own but now it stoppedsomeone help me please

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