These are nice systems.  Make sure to reset the BIOS to Default before loading.  Loaded Windows 11 Pro and installed a P600 NVidia.  These are remarketed, but Very Clean and worth the purchase!  Only negative for me, is the big white sticker  they put on them that is very hard and time consuming to remove.  Wish all the sellers would put them on the bottom of the system or none at all!Worth Purchasing from this Seller, quick ship and systems arrived in great shape!