Pop up warning of apps, but cannot delete
i downloaded Catalina and now popups saying helpmac app shoud be deleated or could harm computer. i have searched for app put in trash and emptied then shut down. it comes right back when reboot.
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Download and run Malwarebytes. Malwarebytes was developed by one of our own colleagues here in ASC and is about the most proven anti-malware software for Mac.