USB Devices not working properly - Keyboard/Headset

So both my headset and my keyboard, has multimediabuttons, like play/pause, volume controlls etc. But no one seems to work properly. I had the headset for a couple of months, but didn't really deal with the problem since everything else worked fine, but now with the recent purchase of a new keyboard, it doesn't work here either. It is not driver issues, and not hardware issues, so I have no idea what to do, I am bit of a newbie on computers, but my guess is that it is something wrong with Registry somehow or something.
Now I have contacted the support from the keyboard manufacter, and they want me to send it to them, but since I don't think it is a hardware issue and really don't have the time to send it, so im looking for help here

Headset - Creative Soundblaster Tactic 3D Wrath
Keyboard - Steelseries 6Gv2

I would really appreciate some help

Boozad said:

Slowlyklasse said:

It is not driver issues, and not hardware issues

I take it from this you've installed the relevant software that came with the peripherals?

Indeed, on the headset I did, but the keyboard didn't get any, nor could I find it online, it seems to install through just plugging it in.

Boozad said:

Is this your keyboard? You have to press the Steel Series key (in place of the Windows key) then the relevant F key to use the media control keys.

Yes, I am aware of that, the F keys are working fine, but not when using the steelseries button for the hotkeys to work. Nor Is the hotkeys on the headset.

Boozad said:

As you didn't outline that in your original post I could only assume you hadn't tried it.

Yes, sorry about that, I really appreciate your help, but it just seems like a really simple problem, and I don't understand how no one else has the same problem, Im just thinking that there is something with the computer, rather the hardware, like a registry problem of some sort, maybe the computer can't recognize the hotkeys, or I need to update something. In the steelseries forums it says the the hotkeys uses windows media player to function, and that you need WMP 6.4 or later to function properly. I have the latest version, but I had some problems before with WMP not starting. But I fixed it some time ago and its working.
- And the hotkeys doesn't work on the headset too, it has to be some kind of connection.

Alright, so I did some digging, and I found out that in services my "Human interface device services" is disabled, and I think thats the problem, but when I try to enable it, it says "access is denied"

Okay, so after a lot of work, it looked like my computer was infected with malware, and some other underlying issues with my sloppy computer work. I did a windows reinstall, and that seems to have fixed the issue, both keyboard and headset are working properly. Don't know if I should mark this as solved, but still, thank you both for the help, I really appreciate it