VirtualBox Error Failed to Open a Session for the Virtual Machine 2019 Guide

This is the error i received today and here is how i solved or fixed it.
It's a short video guide or tutorial on how to fix this error:
Failed to Open a Session for the Virtual Machine

VT-x is not available (VERR_VMX_NO_VMX)

Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap
Interface: IConsole
{872da645-4a9b-1727-bee2-5585105b9eed}

[marcel_-cejs]

Thank you so much. I've tried all solutions, but nothing worked. Only your solution worked perfectly fine.

[balajimore]

Thanks bro I have been frustrated from last 8 days but when I watched it...that time my I have relax

[MrDeeb]

Simply genius and I was looking 1 week ago how to enable Sandbox hehe
thx, life savor!

[abifanny]

Thank you very much.I have been frustrated trying to fix this for days.God bless!

[petermanjapan]

Thank you!
For me the disable/enable trick was it. No boxes checked/ unchecked.

[legastemichael]

Glad I watched this fix after watching a couple of Videos that is not working for me. +1 Sub

[PrajwalB]

Thanks a Had almost lost my mind cause of the error!!! It works perfect!!!

[boatflight]

THANK YOU SO MUCH I SPENT 3 HOURS TRYING TO FIND WHY IT DOESENT WORK

[petermanjapan]

Thank you so much! Bios’ Disable/Enable worked for me🙏

[irfanrashid]

Worked for me! Thanks for the video. Just keep the virtualization setting in the bios enabled.

[shubhamkumaroriginal]

Came back just to Like it. It cleared my trouble at final step. Kudos❤️

[creepy]

super danke. das war die erste hilfe die mir geholfen hat und es hat auf anhieb geklappt nachdem ich viele lösungen probierte. danke.

[itsme]

Thank you, it works!
For those who is searching "Turn Windows features on or off" it can be opened:

[chrisl]

Lol it really worked, even after 2 years thank you so much

[pinab]

I tried so many videos and finally it worked after yours 😊 thank you 😆

[Daboss-dk]

THANKS SO MUCH YOU FIXED IT!!

Edit: I thought it was because my computer wasn't all that good but when I looked into it and found this video I could finally run my Windows 7 VM :D

[VinayagaMotorsTsy]

Supper bro really really worked .. thanks a lot. You helped me before my exam

[gamerextremepro]

Thank you so much I've been trying to do this for 1 year but I have done it

[tarhconglat]

Thanks a thousand times. It works like magic

[riomuscat]

Thank you this was so helpful looked everywhere but you gave me the solutions