I have a yoga lenovo which a bought around 5 months ago and i could be using it normally but after a while the screen starts going black and coming back again very very fast. It then goes completely black or the pixels become red. I didnt drop it. I dont know if it's a virus but everytime i open the laptop an internet tab opens out of no where to a website. It got slower too. I cant identify the problem. Can someone help me?