To legacy\MBR boot, you can simply directly boot from the Eset system rescue ISO file (or to add persistence for updates - see previous blog articles).
1. Drag-and-drop the eset-sysrescue-live_enu.iso file onto the MPI_FAT32 Desktop shortcut
2. Add 5MB to the suggested size
3. Copy the .imgPTN file to the E2B drive \_ISO\ANTIVIRUS folder, make it contiguous and 'Switch' to the .imgPTN file using the E2B MBR menu or \_ISO\Switch_E2B.exe.
4. Extract the contents of \boot\grub\efi.img to the root of the E2B volume, so that you now have a \efi\boot folder containing two .efi files
However, here is a way to 32-bit and 64-bit UEFI-boot by using the E2B grub2 menu system.
You will need to be familiar with the E2B grub2 menu system first.
See also: ESET SysRescue 2020 with persistent updates and agFM UEFI supportTo UEFI-boot (64-bit UEFI) or MBR-boot from recent versions (no persistent updates):
1. Drag-and-drop the eset-sysrescue-live_enu.iso file onto the MPI_FAT32 Desktop shortcut
2. Add 5MB to the suggested size
3. Copy the .imgPTN file to the E2B drive \_ISO\ANTIVIRUS folder, make it contiguous and 'Switch' to the .imgPTN file using the E2B MBR menu or \_ISO\Switch_E2B.exe.
4. Extract the contents of \boot\grub\efi.img to the root of the E2B volume, so that you now have a \efi\boot folder containing two .efi files
However, here is a way to 32-bit and 64-bit UEFI-boot by using the E2B grub2 menu system.
You will need to be familiar with the E2B grub2 menu system first.