This a. m. all was fine until I d/l a video program. My system has been hacked with constant ads, messages from Microsoft to call a number and i will get help. I did and it was made to someone in India. He knew my first name, so i suspect it was on the level...but he kept draging the information and i got suspicious, so i hung up. My Firefox browser has been taken over by Yahoo and Ask...and i can't get it back. This post is being written on my laptop, Win10. Each time i tried to do some surfing, ads would pop up, a voice would warn me to make a call and etc. I had d/l a video program that started all this and i never had the opportunity to uncheck the ASK bar toolbox and etc. It just happened. I tried the about:config area but its quite confusing. BTW, after going there i am constantly reminded with a popup asking if i want to go back to past browser or keep the new one. I tried both and nothing changes. IS there any hope?