Restart the computer with the installation media removed to check if the repair worked. It lets you boot from the Windows installation media or a bootable disk or flash drive.Ĭlick the Repair your Computer link at the bottom of the Install Now screen.Įnter the following three commands in turn, following each by pressing the Enter key: Use the F12 key at the Dell Splash screen to enter the boot menu. These steps apply to any legacy drive used as a boot drive on any recent Windows Operating System. How to repair your Main Boot Record (MBR) Windows 10 (before Version 1709), Windows 8, and Windows 7:įirst run the command below to back up the old BCD: Verify that the EFI partition (EPS) is using the FAT32 file system and assign a drive letter to it that is not already in use. Select Command Prompt from the Recovery Options. Verify that the EFI partition (EPS - EFI System Partition) is using the FAT32 file system. Assign a drive letter to it that is not already in use: Select the operating system, and click next. Assign a drive letter to it (Assign a letter that is not already in use.): Verify that the EFI partition (EPS) is using the FAT32 file system. Select Command Prompt from the Troubleshoot screen: The timing for this option was shortened from that in Windows 7. Tap rapidly on the key once the personal computer has turned on, but before the Windows Splash Screen appears.īe aware this may take several attempts.

Verify that the EFI partition (EPS - EFI System Partition) is using the FAT32 file system. Insert the Media (DVD/USB) in your personal computer and restart. Verify that the EFI partition (EPS) is using the FAT32 file system and assign a drive letter to it that is not already in use:

Select Command Prompt from the Advanced Options tab in the Troubleshoot screen: Select Repair your computer from the menu that appears. Use one of the methods in the following article to boot into the Windows Advanced Startup Options Menu:īooting to the Advanced Startup Options Menu in Windows 11, and Windows 10 If you do not have the Installation Media: Note: If you are running Windows 10 (version 1709 or newer), ignore step 8 and go to the information at the end of this section of instructions.

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