KB ID 0000570
Seen while installing vSphere ESX 5 (In this case, on a Dell Power Edge).
<HARDWARE_VIRTUALIZATION WARNING: Hardware Virtualization is not a feature of the CPU, or it is not enabled in the BIOS>
Unless you have a “quite old” server, you simply need to enable “virtualization Technology” in the machines BIOS.
1. On this machine (Dell PowerEdge T410) enter the BIOS > Navigate to Processor Settings > Virtualization Technology > Set to Enabled.
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