My Mother had the same, we sent her computer back to the store, they re-installed it and it hasn't crashed since. If you can't bring it back to the store there is a special option to reset your computer, while keeping all your files, I don't know how to do it, but I read it in C.I.O., so Bing an article named ''12 ways Windows 8 dominates the competition''. I hope it helps.