Hi. Within the last few days I've been having some issues with my computer. While using Google Chrome and Firefox, Avast will alert me that a "harmful webpage has been blocked," or "infection blocked" usually when using Youtube at the former, Hulu at the latter. Then I noticed that there were some weird things going on with Youtube. The video would freeze but the audio would continue, or the video would get extremely choppy. I updated my graphics card and that seemed to remedy that particular situation. I continue to get alerts at random times like at CNN dot com, or even when just having a browser open but not at any website.
I ran Malware Bytes and Avast Virus Scan and nothing came up. But yesterday web pages were freezing momentarily, for like a few seconds, where I couldn't type anything, but then it would be okay again. Just now though, I had a few tabs open, started to type something in a field andn it just stopped. Then the screen turned white, while the taskbar was still visible but turned black. I couldn't move my mouse, type anything. ESC wouldn't work, nor would ctrl alt delete. So I turned off and on the comp again and now I'm here.
If anyone can help me out I would really appreciate it.