Blackwidow 2016 crashes my computer

I bought a refurbished Blackwidow 2016 from Newegg about a month and a half ago. Everything was going fine, I had Synapse 2.0 installed. Then last Monday my computer starts hanging at random about 15 minutes after startup. I'm not doing anything resource heavy, I'm usually just browsing with Firefox when it happens.

Fast forward to today and a a lot of research later, I'm pretty sure it is the keyboard causing some issues. System works fine with my cheap Asus keyboard, but hangs or gets BSOD when the Blackwidow is plugged in. I uninstalled Synapse, reinstalled it and still have the problem. I tried to use driver verifier with only my mouse and keyboard connected, and it gives out a BSOD about a HID. My mouse is a Logitech, had it for 5 years at this point. I doubt it is it. I already checked the RAM and the drives, everything came back fine.

So how do I get this nice keyboard back to working state? I don't really need Synapse but at this point only plugging the keyboard in causes issues.

My system: Windows 7 Home Edition 64bit SP1 Asus Motherboard, exact model unknown, it came into a stock Essentio desktop 16GB Corsair RAM i5-2320 Nvidia GTX950 Thermaltake 500w PSU 1TB Mushkin SSD 2TB Seagate HDD Logitech mouse is so old the model number is worn out And the faulty Blackwidow