The best free virus remover is AVG and Avast as well as Malwarebytes and Bitdefender.
Avast/AVG, Malwarebytes and Bitdefender all offer strong and real time protection, on demand scanning and cleanup for existing virus infections on your computer.
These computer virus removal tools balance comprehensive scanning, user friendliness and system performance.
Bitdefender Free also provides great virus detection without cost and Malwarebytes Free also excels at finding and removing advanced threats on your computer.
And Avast One Basic computer virus remover also offers security features like a firewall and VPN.
I've used AVG and Avast myself and find that they work great.
Malwarebytes and Bitdefender have also been great at finding and removing viruses from computers for me as well.
If you're really careful you may never need to remove any viruses as I rarely get viruses on my computer.
Never click on links or open emails that you're not sure of as viruses can be hidden in links and emails that could be downloaded to your computer.
Sometimes you might get popups saying your computer has a virus and in reality it's just a popup and not a virus.
In those cases you can simply close out the browser and or restart the computer and the computer will be fine, but it's still good to scan the website to be safe.