When all three of the purchased machines were booted, the attached (photo) warning was seen. Whether this was a virus or not, we should not have to research/troubleshoot something newly purchased This is not only inconvenient, but misleading advertising. The inclusion of Windows 10 PRO was the reason we purchased these units. We should not need to re-install the ADVERTISED OS for these machines. Were they even checked for salability before shipping? Nice units, but we will NOT purchase from this reseller again.