Specific keyboard randomly disconnects but works on other computer

I have recently purchased a brand new "CM Storm QuickFire Pro".
Which is a USB Mechanical Keyboard.
Full specs here:
Amazon.com: CM Storm QuickFire Pro - Mechanical Gaming Keyboard with CHERRY MX BROWN Switches and LED Backlit Gaming Keys: Computers & Accessories

It worked flawlessly for a couple of weeks, but recently it started disconnecting and reconnecting randomly, making the keyboard unusable.

I've tried another generic USB keyboard, and It works - No disconnects.

I've tried connecting this keyboard to my laptop, and It worked great! - No disconnects.

It seems that the problem occurs only when I connect it to my pc.

My motherboard is Gigabyte MA770-UD3.

I've tried so far going to device manager and Uninstalling what seems to be the keybaord "HID Keybaord device". but no luck.

I've also tried going to my USB Root Hub and removing the tick from " Allow the computer to turn off this device to save power".

How can i fix this annoying problem ?

Hey, Thank you for your help!
I did everything as you said and the results are:

1. SFC /SCANNOW Command -

Code:

C:\Windows\system32>sfc /scannow

Beginning system scan.  This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection found corrupt files and successfully repair
them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For
example C:\Windows\Logs\CBS\CBS.log

The system file repair changes will take effect after the next reboot.

(CBS.LOG was 9mb so I dont know how to upload it.)

2. I downloaded the free version of SUPERAntiSpyware. and I've preformed a complete scan and removed all threats - (See attached log)

3. I downloaded Malwarebytes Anti-Malware Free. I ran a full scan and removed everything it found. (See attached log)

4. I downloaded AdwCleaner. I ran a Scan, but I didn't clean anything. Please see the attached log.

5. I also couldn't find any drivers for my keyboard on CM's site. I also tried to search In google but I had no luck.

6. I installed AMD Chipset Driver (include chipset\sata raid driver) V.8.641, But I had a failuare in the installation.
(see attached xml)

So far there is no change. I connect the keyboard to my PC, I hear the "connect" sound and the lights turn on for a second, and then I hear the "Disconnect" sound and the lights turn off and my keyboard doesn't work anymore. Now I also saw the "USB Device Not Recognized" Error in my task bar.

They keyboard works flawlessly on another computer.

any further steps I can take ?

I cleaned my pc with ADW (see attached log)
TDSS Killer didn't find anything worng (see attached log)

But, the problem has been solved, the keyboard works great.
but I'm afraid that the problem might come back again, So I will update if that will happen.

It just worked, I don't know exactly what fixed it .