I have an HP Zbook 15 G3 for sale. It's had it's keyboard replaced and works well now. The only things wrong with it that i know of are the battery is at around 50% the factory capacity, and the power adapter plug can come unplugged fairly easily. As long as you aren't moving the laptop around a lot while plugged in, it's fine.Otherwise, Windows 10 was reinstalled via the OEM UEFI partition and has an OEM license. All drivers are installed on it, as well as the dedicated Quadro M2000M graphics card which is great for the money.Also ran all the Dell UEFI Diagnostics tests and they all passed. Only the battery shows warnings when it's fully charged and fails if it's not charged to its' full 50% capacity. The USB ports work fine despite showing as failing here. Not sure why the tests are failing them, but they work when Windows is booted up.If you have any questions, feel free to ask and i'll answer them and put the answers here if it's something important