virtual machine

I was looking forward to installing a virtual machine, but I'm new to that idea. I will need help with a few questions
- How can I install it in a virtual machine on my Windows laptop ( any step-by-step guide and which software to use).
- I want to know how secure it is, how to secure my documents in the virtual machine in a way that they can't get missing and are always easy to retrieve. (virtually, or any other very secure and safe option)
-Is there any possibility of retrieving that same virtual machine account I installed on my laptop with its previous details ? if yes, how can I do that?
Please, I will be waiting for your reply. If you have any additional knowledge or call for attention which I need to know, please kindly tell me.

Vitual machine is like a computer within a computer. Takes a lot of resources. As secure as you computer. You might as well use your computer if security is the issue and secure your computer.
You can download and install one for free from VMware.
Cyber security guys mostly use it to test harmful or risky software like virus, Trojan etc

IM Dude said:

Vitual machine is like a computer within a computer. Takes a lot of resources. As secure as you computer. You might as well use your computer if security is the issue and secure your computer.
You can download and install one for free from VMware.
Cyber security guys mostly use it to test harmful or risky software like virus, Trojan etc

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thanks