This computer is not for networking on a domain. I am an  IT Admin / Systems Engineer / Technology Consultant / Computer Builder. The computer was placed in a box and the styrofoam packing was just thrown in the Box. If you're going to pack a computer in styrofoam, it needs to be taped around the computer. Upon startup, there was a glitch on the screen with several horizontal lines on the bottom. So I shut it off and pulled the cover to see that there is a KimgFast SSD. I replaced it with a Samsung 870 EVO SSD, since KingFast is not on the approved list of SSD's. Put it back together and fired it up using a USB flash drive with Windows 10 Pro. During setup on the domain, the computer ran super slow. The two other refurbished PC's with the same exact specs from another refurbisher fired up on the domain immediately. I also noticed that the fan speed in the PC was running very high for over 15 minutes. But these computers are used for testing imaging software in the healthcare industry. Once it performed all of the driver updates including a firmware update , it ran a little bit better. One thing to note, it does not have a DVD-RW drive. I know that some refurbishers use the cheapest Hardware to get the biggest bang for their buck, but packing a PC poorly will only result in returns and a bad reputation.  So I would not recommend using this computer for domain networking. And I probably won't be purchasing another refurbished computer from this seller. First impressions are always the most important.