We purchased 2 of these computers for homeschooling our children. The reviews on these computers were good and we only needed the for basic work. They worked fanatically for the first 3 months, untill they didn't. 1 week after the 90 day warranty was up, one of the computers would not charge nor could you operate it with the power supply plugged in. Two weeks later the second one is starting to die. It appears to be a similar situation where the system will not charge. I have experience with building and repairing the hardware on laptops and towers, as well as diagnosing software issues. We bought these thinking they would last at least a year, most refurbished systems don't last long. We didn't buy the extended warranty because we thought Amazon and it's reseller would have better equipment than this. If the computers won't last at least a year, there is no point in purchasing them.