Lightning strike. A lightning strike is an electric discharge between the atmosphere and an earth-bound object. They mostly originate in a cumulonimbus cloud and terminate on the ground, called cloud to ground (CG) lightning.
Virus protection software is designed to prevent viruses, worms and Trojan horses from getting onto a computer as well as remove any malicious software code that has already infected a computer. Most virus protection utilities now bundle anti-spyware and anti-malware capabilities to go along with anti-virus protection.
For Computer Viruses: There are many free anti virus programs. You can download one of them and install in your PC. After that, you should update regularly and scan your PC tâ¦o be sure you are not infected with something new. AVG and Avast are better products for computer virus protection. But use only one of them.