I ran malware bytes, no viruses. Viruses are out of the picture, this exact problem was had like a few weeks ago, and Bestbuy took it in, and the ram apparently was broken, so they fixed it and gave me it back. Now the same problem is occuring. after I hit desktop, a few minutes later, my PC freezes. Like sound just keeps going, like in music, but the video freezes, mouse freezes, and any or all action ceases. I have to hit boot button on my case. Please help me. It wasn't doing this earlier, but now it started up badly.