About 2 weeks after the 90 day window the hard drive failed on the computer. Amazon told me they wouldn't help me because it was outside the 90 day return window and that I would have to go back to the seller Chuwi for the warrantee. Chuwi tells me the same thing, that they can't help me and I need to go back to the seller. I send them screen shots showing them that they are the seller with the company name and address. It does not good. I'm stuck in a viscous circle of everyone telling me that the other person is responsible. On the Amazon site it says that the product is warranteed for 12 months. I've been going in circles for 3 weeks on this. All I want is a working computer that I paid for!