We recommend performing Windows® 10 installations enabling UEFI with a GUID Partition Table (GPT).
Some features may not be available if you use the Master Boot Record (MBR) style partition table.
Configure a system to install an OS to a GUID Partition Table (GPT) partition
- We highly recommended performing a backup of your data. If you have a second disk drive with enough available capacity, you can create a system image and recover the full installation as it was before you started this procedure.
- Screenshots and directions below are examples. Consult with your motherboard or system manufacturer for specific BIOS instructions.
- Connect a USB Windows 10 UEFI install key
- Boot the system into the BIOS (for example, using F2 or the Delete key)
- Locate the Boot Options Menu
- Set Launch CSM to Enabled. If CSM is set to Disabled, you can skip to step 8 below
- Set Boot Device Control to UEFI Only
- Set Boot from Storage Devices to UEFI driver first
- Save your changes and restart the system
- Reenter the BIOS (for example, using F2 or the Delete key)
- Confirm in the Boot Priority List that the USB UEFI OS Boot option is at the top of the list
- Reboot the system and install Windows as usual
Confirm that Windows is installed to a GPT partition
- Boot into Windows
- Open Disk Manager (For Windows 10, press the Windows key and the X key simultaneously, then click Disk Manager)
- You see three partitions including the EFI System Partition
- Right-click the disk shown as (Disk x, Basic, Capacity, Online) on the left
- Select Properties
- Click the Volumes tab
- Here you can confirm the Partition style
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