4th hard drive since dec 2014

Dell did not say anything except that they installed windows 10 this time instead of putting me back on win 8.1. That means that I don't have to go back to windows insider and I probably won't. As usual I installed firefox, chrome, ccleaner, and a free antivirus program. I have gone back to the annoying and noisy comodo firewall, just in case I was attacked a couple of weeks ago.