What's up? What you are going to do is delete the entire pso folder, then you will have to download and reinstall the game but with your antivirus disabled. After the game is installed you will proceed to enter the configuration of your antivirus (which in this case is windows10 defender) and you will go to the exclusions section. Where there you will put as an exclusion to the pso folder. Then you will put as exclusions the following executables in the folder of pso "Launcher and psobb.exe". After having done this you will write the following in the windows search Bar "allow an app through windows firewall" you will change the configuration, then you will click to allow another application and there you will look for the executables of pso, that will be two, the launcher and psobb.exe, After doing this, it will activate your antivirus again. And everything will be fine make sure that before activating your antivirus again, the full pso folder and the pso launcher executables are in the exclusions of your antivirus !! because windows 10 detects the launcher as a virus, but it is not. So don't worry