I encountered this error the other day after a motherboard replacement in a Dell PowerEdge Server:
“This virtual machine is configured for 64-bit guest operating systems. However, 64-bit operation is not possible. This host does not support Intel VT-x.”
All of the the Virtual Machines turned on just not this particular VM.
After comparing the settings of a working VM against the VM not turning on I realized that the working VM(s) were all running 32-bit operating systems and the one not working is a 64-bit machine.
The Intel VT-x error is referring to the setting “Virtualization Technology” setting found in the BIOS.
- I turned off the machines and put the host in Maintenance Mode. Then rebooted the machine into the System BIOS and enabled Virtualization Technology option.
- Saved the settings and rebooted the host.
- Success! The 64-Bit machine turned back on.
I’ll remember this one for the next motherboard that is changed!
Here are pictures of the settings changed:
Navigate to Processor Settings and press Enter
Use the arrow keys to navigate to the Virtualization Technology option and use the SPACE, +, or – keys to adjust the setting to Enabled
Note: Execute Enabled should be Enabled too.