Dabid’s Multiboot

Dabid’s Multiboot is a GUI substitute for bootcfg, popular in France.

5 Alternatives To Dabid's Multiboot

EasyBCD

EasyBCD is NeoSmart Technologies multiple award-winning answer to tweaking Windows bootloader.

EasyUEFI

Manage EFI/UEFI Boot Options & Manage EFI System Partitions & Fix EFI/UEFI Boot Issues

Grub Customizer

Grub Customizer is a graphical interface to configure the GRUB2/BURG settings and menuentries.
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Visual BCD Editor

Visual BCD Editor - advanced GUI version of bcdedit utility. for Windows 7/8/10 and Vista

bootcfg

Used to edit boot configuration data on Windows systems. Predecessor of bcdedit.