With Converter Standalone you can perform conversions from BIOS and UEFI sources.

Converter Standalone preserves the firmware interface during the conversion. You cannot convert BIOS sources to UEFI destinations and the reverse.

For UEFI sources, the supported destination types are Workstation 10.0 and later, ESXi 5.5 and later, and vCenter Server 5.5 and later.

Table 1. Supported Sources Based on Operating System and Firmware Interface
Operating System BIOS 64-Bit UEFI
Windows Vista SP2 Yes Yes
Windows Server 2008 SP2 Yes Yes
Windows 7 Yes Yes
Windows Server 2008 R2 Yes Yes
Windows 8 Yes Yes
Windows Server 2012 Yes Yes
Windows 8.1 Yes Yes
Windows Server 2012 R2 Yes Yes
Windows 10 Yes Yes
Windows Server 2016 Yes Yes
CentOS 6.x Yes Yes
CentOS 7.x Yes Yes
Red Hat Enterprise Linux 4.x Yes No
Red Hat Enterprise Linux 5.x Yes No
Red Hat Enterprise Linux 6.x Yes Yes
Red Hat Enterprise Linux 7.x Yes Yes
SUSE Linux Enterprise Server 10.x Yes No
SUSE Linux Enterprise Server 11.x Yes No
Ubuntu 12.04 LTS Yes Yes
Ubuntu 14.04 LTS Yes Yes
Ubuntu 16.04 LTS Yes Yes