Windows fails to install in Unified Extensible Firmware Interface (UEFI) mode with VMware vSphere Hypervisor (ESXi) key in System - IBM System x, BladeCenter, Flex Systems
RETAIN tip: H21955
Installation of Windows 2008, 2008 R2, or 2012 in Unified Extensible Firmware Interface (UEFI) mode will fail when an VMware ESXi embedded hypervisor key is attached.
When attempting to install Windows in this case where multiple Extensible Firmware Interface (EFI) system partition (ESP) is present, users may see a pop up message stating:
(where EFI = Extensible Firmware Interface)
The system is configured with at least one of the following:
The system is configured with one or more of the following IBM Options:
This tip is not system specific.
Note: This does not imply that the network operating system will work under all combinations of hardware and software.
Please see the compatibility page for more information:
There is currently no fix to this issue.
To work around this issue, perform one (1) of the following:
Remove the USB key prior to installing Windows.
Clean the USB using a utility like 'diskpart' to wipe the EFI system partition information prior to installing Windows.
Microsoft does not support multiple Extensible Firmware Interface (EFI) System Partitions during installation so the workaround is required in this case.
Applicable countries and regions
Document id: MIGR-5093789