How to turn off antivirus on a toshiba satellite laptop

I would love to keep finding more people with this problem, maybe if we all complained Toshiba would listen. Toshiba will take no responsibility for this poor design and has told me to buy a new computer even though mine was purchaed in January of '12 and I started initially having this issue probably 14 months after purchase. It took a while to discover that this was the problem and he had to finally take it apart to see this. Per my repair person it's poorly designed like a piece of tape and 2 pieces of aluminum foil and he can see why it quit working. The power button is likely the problem and Toshiba no longer makes the part so it cannot be repaired. I hate to tell you this but I have the same problem with this laptop and it's bad news. Hope someone can help me with my problem.

The laptop stays on from around 5 to 20 min. I took it to a tech and he kept it for two days and he said it never happened to him. My toshiba satellite p755-s5320 keeps just turning off (not shutting down) just click off.

How to turn off antivirus on a toshiba satellite laptop