Well, I got Windows 8 in September 2012, and have never had a single problem. I hesitated in getting it because I heard so much negative stuff so I kept my older laptop just in case - to insure I would not be without one because I attend online college. Well, to make a short story, I never went back to Windows 7 and can't even remember how long it has been since I even looked at my older laptop.
I think that perhaps many of the folks who complained in here had other issues BEFORE they got Windows 8, or just didn't really know what they were doing - - self mechanics, I would say. I have been very pleased and will continue enjoying using W8 - and look forward to the next new version - after the bugs are out. I have never been one to jump on something new until it is really working well, and this is the experience I have enjoyed for a number of months.
( Mind you, it wont ever reside on my desktop, for that I use Black Opal

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