Windows Operating Systems were designed with flaws ..open back doors to use when needed... Anti Virus Software was a Scam used to sell you a product you really didn't need.. If the Operating System was designed properly and SECURE... i removed the Antivirus or mainly never installed it...back in the 90's and since.... Waste of money and just made your system unstable and stupid messages popping up constantly.... Like the Idiot light on your Car does... When the " Check Engine " light goes on.. Cash registers ring all over... Most times it is a minor issue easily resolved by the owner ( we used to fix our own vehicles and I still do ..) But PANIC sets in with most people.... Educated or Not Lol