Cannot boot with usb keyboard plugged

[ddinc]

Cannot boot with usb keyboard plugged.(was ok before)
İf I plug in after boot works fine.
So I think is not a port problem ?
Tried every port.
Upgraded BIOS without luck.

 

[HarriePateman]

Name and make of keyboard please,
and motherboard model.

HLPTech

 

[ddinc]

keyb:Everest kb 690
MB:Gigabyte GA-EP41-UD3L

 

[HarriePateman]

Okay try these 2 things;

1, Uninstall everything under the heading USB in the Device manager (I will also attach a document please see for possible errors.) reboot the pc with the Keyboard plugged in, then install drivers.

2, If (1) fails, disable boot from usb in the bios, and try again.

HLPTech

 

[ddinc]

Have done but without success.
Then I tried another keyboard...was ok.
Apparently mine could not boot but function after boot.

Thank you for your effort.