Version 10.1 was designed for Legacy BIOS. Modern PCs often require secure boot to be disabled or CSM enabled to boot it.
Hiren’s BootCD (HBCD) is a bootable ISO image that contains a massive collection of diagnostic, repair, and recovery tools. Version 10.1 arrived at a pivotal time when users were transitioning from old IDE drives to SATA and from legacy BIOS toward the early stages of UEFI. hiren 39-s boot cd 10.1
What’s included (high level)