The ways to protects your computer from viruses

There are some ways to protect the computer from viruses.First,install the antivirus software in the computer to safeguard from damaging viruses.Second,purchase software from a trusted and reliable source.Third,when copying data onto a floppy diskette,run a virus check on the diskette before using it.Fourth,viruses can move across computers through e-mails,therefore,e-mails users should not open mails from uncertain sources.Finally,use the computer virus killing software to eliminate an existing computer virus.Additionally,scan and carefully examine the entire system to ensure that the virus did not penetrates other parts.