The easiest way to check if a Disk uses GPT or MBR Partition would be to ... is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP (2006-16) & a Windows Insider MVP (2016-2022).

The error “Windows detected that the EFI system partition was formatted as NTFS” usually occurs when you install Windows on a GPT disk and the EFI system ...

While it's rare, it's possible that you've tried installing Windows 10 or 11 on a PC only ... MBR (Master Boot Record) partition style. If your disk is using the GPT partitioning scheme, it ...