Vt-x/AMD-V hardware acceleration is not available on your system

You need to Enable Virtual Hardware in BIOS.

1. Press F2 key at startup BIOS Setup.
2. Switch to the Advanced Mode tab then choose CPU Configuration option.
3. Scroll down to the "Intel Virtualization Technology" value, and then change [Disabled]->[Enabled].
4. Save Changes and Exit.

It depends on what tool your using to run your VM,

e.g. Virtual box there is setting to enable Hardware virtualization for guest VM

Edited:

If you don't have hardware Virtualisation enable you can try with software Virtualisation this will impact performance

This is how I resolved this problem:

1. I restarted computer, disabled virtualization from BIOS, and started computer.
2. When I opened Virtualbox, nothing changed (the same error).
3. I restarted computer again, and enabled virtualization from BIOS, and started computer.
4. When I opened Virtualbox, guest OS started without problem.