Ok, so I purchased a lenovo y-500 laptop so I could be able to play most games, but ever since about a month ago my computer has not been normal. When i'm on youtube i can't even watch videos half the time, cause they just freeze after like 2 minutes which is very annoying. Also i can't even download anything it just stops at 99% or just finishes download and never opens. I don't understand why all of this is happening. Does anyone know what these problems mean, or how I could fix them? Oh and also I have adblocker, but i get like thousands of pop ups for somereason.
Added (1). I scanned my computer defragmented, updated everything and starting using firefox, and now everything is working.