How to enable VT-x in HP550 laptop?

I am using HP550 Notebook PC, I can't find option to enable VT-x in my laptop. In my BIOS settings, I don't have options related Virtualization Technology, my BIOS version is F0.0.

I also tried to update my BIOS with version F1.0, but it results in 'unhandled exception' while installing. I don't know how to fix it.

Please give me solution for this.

Thanks...

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