VMware – Attempting to load a 64-bit application, .. this cpu is not compatible with 64-bit mode.

Recently, I got this error message while trying to run a 64 bit guest OS on VMware.

“Attempting to load a 64-bit application, .. this cpu is not compatible with 64-bit mode.”

I was running a 64bit windows 7 professional OS. And the VMware workstation version was 6.5.  The guest OS was a windows server 2003 64bit R2 edition.

I just turned on Hardware Virtualization in BIOS and it fixed the problem. You can find very useful information about hardware virtualization from Microsoft  and Intel .

However some users can still face the same problem even after enabling hardwate virtualization. In this case you might need to disable Paravirtualization in vmware. More information available at VMware.

Cheers.

 

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