How to stay safe from viruses
1. Back up all of your files regularly.
2. Use virustotal (https://www.virustotal.com/#/home/upload) to check for malicious files.
3. Use a good antivirus.
4. Look at reviews before you download something. A review may say that it contains a virus.
5. Before you run a file, scan it with a good antivirus.
6. If you find a virus, rate the application and say that it contains a virus. Also, vote to say that the application has a virus on Virus Total.
7. Make sure you use a good firewall.
Help Me! I'm infected with a virus!
1. Download a antivirus and try to delete the virus.
2. If you can't delete the virus, email me (virusexpressyt@gmail.com) so that I can try and help you to remove the virus hopefully before the virus starts infecting.
Note: I can't guarantee that I will be able to help you delete the virus.