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Novice
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Switch from Legacy boot to UEFI Boot

I have an Intel Nuc8i7beh that is set to legacy boot. How do I switch it to use UEFI?

 

SSD: Samsung 970 EVO Nvme using a Guide Partition Table

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Super User
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Fairly easy to do.

 

First, make sure you have a backup of your data.

 

Then, open the bios to determine where the setting is to change to uefi boot. Do not change it, yet.

 

Then, boot your system and use MBR2GPT. Here is a link, for your convenience, on how to do this:

https://www.tenforums.com/tutorials/81502-convert-windows-10-legacy-bios-uefi-without-data-loss.html

 

As soon as the conversion is done, reboot to the bios and make the switch from legacy to UEFI boot.

 

Then, reboot your system.

 

Doc

 

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Novice
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Thank you Al.Hill

 

What if your disk is already using a Guide Partition Table?

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Super User
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Is it a bootable disc, or just a disk you formatted as gpt?

 

Doc

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Novice
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It currently boots up under legacy mode. So yes the disk is bootable.

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Super User
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go to start, and scroll all the down to Windows Administrative Tools and select Computer management. Then, select disk management. Take a photo of the graphic showing the disk in question.

 

Provide that photo.

 

Doc

 

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Novice
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Disk.jpg

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Super User
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ok, download, run, and save the results of this utility as a text file:

https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility

 

Then ATTACH the text file (using the paperclip under the toolbar).

 

Doc

 

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