MajorAv is the most valuable anti-virus & optimization combination. MajorAv includes Antivirus as well as: System Cleaner, Privacy Cleaner, Driver Updater, Speed Booster. Detect and block viruses, malware, spyware, ransomware and phishing. Before these threats affect you, we stop them through intelligent analysis. MajorAV System Cleaner removes leftover files and free up your disk space. MajorAV Speed Booster makes your old PC run faster.