If these were really refurbished by Asus, they clearly don’t have their process down.
On first boot, mine came up to a “Chrome OS is missing or damaged” screen. Simple enough fix, you just have to build the recovery media on a USB drive, and perform a factory reset on the device.
If you run into this issue as well, the following article goes over the recovery process:
On the bright side, they included some documentation on creating Windows Recovery Media in the box.