Dell Support, Windows 10 How to repair the EFI bootloader on a GPT HDD for Windows 7, 8, 8.1 and 10 on your Dell PC | Dell US Link July 12, 2018 Michael cd /d Source: How to repair the EFI bootloader on a GPT HDD for Windows 7, 8, 8.1 and 10 on your Dell PC | Dell US