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Intel Nuc No Legacy boot


I need to install in my 3 Intel NUC (NUC6CAYH) Windows 10 - 32 bits.

According to this page

this model support legacy boot but it was not possible to start the 32 bits installation.

Have someone tried to do so or this NUC is only UEFI and there is an error in that page?

Is it possible that downgrading the bios could goes on?

Regards, Nestor

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1 Reply

Ghibaro, Thank you for posting in the Intel® Communities Support.


In reference to this scenario, it is important to mention that booting legacy and supporting a 32-bit Operating System are two completely different items. According to the specifications of the Intel® NUC Kit NUC6CAYH, it only supports Windows* 10 64-bit*, but legacy should work:


Based on the following link, also shows that it only supports Windows* 10, 64-bit:


Regarding the question "Is it possible that downgrading the bios could goes on?", It is not possible to downgrade the BIOS from version 0066 as you can confirm in the link below. The only version currently available for the Intel® NUC Kit NUC6CAYH is 0071. "Due to the TXE firmware update in BIOS version 0066, you can’t downgrade to version 0064 or earlier."


Any questions, please let me know.



Albert R.


Intel Customer Support Technician