no virtualisation option in bios

[joe8901]

A8-7600 with Radeon™ R7 Series processor

https://www.amd.com/en/product/5811  supports virtualization 

how to enable 

[itsmyname]

@joe8901 -- it is possible that enabling virtualization requires the processor & the motherboard & the BIOS to cooperate. If you cannot find anything while in BIOS SETUP to "enable" it, I think that you are "stuck".

What is the model-number & model-name of your computer's motherboard?

[joe8901]

[itsmyname]

@joe8901 -- Product: HP 285 Pro G2 Microtower PC

Use of virtualization requires two parts:

1. a CPU , like yours,  that supports it,
2. the BIOS, running on the motherboard, that allows virtualization.

When you launch the Windows "Task Manager", and select the "Performance" tab, and click on the "CPU" icon, there will be some text toward the bottom-right corner of the window, showing one of:

1. virtualization: disabled
2. virtualization: not available
3. virtualization: not active
4. virtualization: active

Which one do you see?

[joe8901]

[itsmyname]

@joe8901 -- Although I strongly discourage doing any "BIOS Update" task, 

see: Driver - HP 285 Pro G2 Microtower PC | HP® Customer Support

There is a slight possibility that this BIOS Update will add an option to enable virtualization. 

The update dates from 2019, implying that you have an older motherboard.

[joe8901]

i have performed the update 

but..... there is still no option to enable vtx service

[itsmyname]

@joe8901 -- sometimes, as Mick Jagger sings: you can't always get what you want

Sigh.