I Bought Uniblue Speed Up My PC on 6/4/2009. It did nothing useful at all. I Requested a refund the day I bought it. There is allegedly a 30 money-back guarantee. I RECEIVED NO RESPONSE TO MANY REQUESTS FOR A REFUND over the next few months. This company is obviously not actually certified by Microsoft, as they claim to be. My order number for the purchase is: 6101760.