Lenovo y580 BIOS unlock

Hey everyone, to get started - I'm a total noob in this area so don't judge. I've searched multiple forums for: "how to unlock lenovo y580 bios", found few old threads, but.. links were dead.

So, how can I do it now? I need to unlock BIOS so I could disable HT.
BIOS Version LENOVO 5DCN40WW(V2.07)
In Bios settings there are no advanced options, like hyperthreading and so on. Just set the time, date, default device and so.

Please help me on this one!

I am running Windows 8.1

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Never mind, found a solution. Thread closed