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loudaslife
Paper Tape
Posts: 1
Registered: ‎12-07-2017
Location: US
Views: 885
Message 1 of 4

Yoga 720-12IKB -- Can't enable Legacy Bios

Hi. I've got a Yoga 720-12IKB (81B5003QUS) with the latest BIOS update (5GCN20WW). I would like to enable Legacy BIOS mode, but the "Boot Mode" field in the BIOS configuration only allows me to select UEFI. Is there any way to fix this and use Legacy BIOS?

eii
What's DOS?
Posts: 1
Registered: ‎01-30-2018
Location: US
Views: 705
Message 2 of 4

Re: Yoga 720-12IKB -- Can't enable Legacy Bios

I have the same machine and tried 5GCN21WW with no luck. I don't have any other choice than UEFI.
przemek1234pl
802.11n
Posts: 152
Registered: ‎11-28-2017
Location: PL
Views: 695
Message 3 of 4

Re: Yoga 720-12IKB -- Can't enable Legacy Bios

I've read some times ago that Intel would soon enforce no CSM module in UEFI BIOS. It's possible, that Lenovo did intentionally disabled this option. Actually Kaby Lake CPU officialy supports only Windows 10 or Linux and both those OSes do support UEFI, so they could thought that there is no reason to keep CSM support cause the only OS that requires it, is Windows 7 and older and these OSes are officially not supported by Kaby Lake CPU and have never been. The last CPU with official support for Windows 7 was Skylake.

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krozz1
Fanfold Paper
Posts: 6
Registered: ‎05-05-2018
Location: US
Views: 461
Message 4 of 4

Re: Yoga 720-12IKB -- Can't enable Legacy Bios

Did anyone ever get this fixed? I am currently having the same issues...

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