Right now I got a free laptop from my school (I'm in the 11th grade). And Usually when i have random turn on moments, I watch porn, which of course I am not ashamed of. Every time when i get finished, I delete my history by going to the history tab and deleting the whole "Today" File. But I remember when I was a little younger and I did this, my father still managed to go threw my history even though I deleted it. like I said, i'm not ashamed of watching porn, but I don't want my teachers or school find out.How can I completely delete my history so that they won't find out?