Here are some trusted security tools that you can install in
your Windows 7 PC: -
·
Immunet 3.0: www.immunet.com/main/index.html
·
Norton 360: us.norton.com/360/
·
Kaspersky: www.kaspersky.com/
·
Bitdefender: www.bitdefender.com/
·
Avast: www.avast.com/index
·
Avira: www.avira.com/en/avira-free-antivirus
·
Panda: www.cloudantivirus.com/en/#!/panda-cloud-office-protection
etc.
You can use anyone of them for your system’s security.