The WiFi adaptor that came with this computer, which was supposedly refurbished and tested (twice) melted inside the USB port on the PC. Thankfully I was in the middle of trying to diagnose the problem with my internet connection, so I ejected the device & once I removed it, it burnt my thumb. Unfortunately I bought this back in March, but did not even open the package until last week as I got a new craft machine for Christmas & this desktop was to be used exclusively for that purpose, so I’m unable to return the computer. I have unplugged it due to my fear of catching my house on fire and will await a response from the seller.