Intel will wave goodbye to legacy BIOS support in 2020

Intel is working with motherboard makers to remove legacy BIOS support from their UEFI firmware by 2020, with a new client/enterprise platform future in 2020 that will lose CSM (compatibility support module).

The CSM is a component that allows UEFI-unaware operating systems and bootable devices run on newer devices with UEFI.

The loss of CSM will see the end of 32-bit operating systems on newer hardware, as 32-bit Windows, and desktop Linux distributions require CSM. WoW64 translation layers will still allow 32-bit software to run on 64-bit Windows, but the lack of CSM will hurt many people that don't have all-new products.