Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Do NOT buy this!

I bought my second laptop this Christmas after my four year old Dell Inspiron 2650 bit the dust. My laptop came with this piece of **** security system on it, pre-installed. I thought I'd give it a shot, and see if it was any better than Norton. To my horror, it was WORSE than Norton, which is hard to do. Norton and McAfee used to be the best of the best, but their products have gone down hill dramatically. If you do decide to go with McAfee, please know that it will steal e-mails, block webpages even after you okay them, and drastically reduce the operating speed of your computer in every way. I uninstalled McAfee after half an hour of dealing with it. I'm now very happy with BitDefender PLUS v10, which works very well.