Antivirus (AnVi) is a fake security application. This rogue prevents legit softwares execution, displays fake alerts and warning messages. Antivirus (AnVi) also detects non existent infections to scare users. It is from the CoreGuard family (Defense Center, Protection Center, Data Protection, Digital Protection, Your Protection, User Protection, Dr. Guard, Paladin Antivirus).
If your PC is infected with Antivirus (AnVi) use MBAM to remove the infection.