His Windows being unlicensed makes perfect sense. Why would he give money to Microsoft? In fact, why would you?

As for the PC - there are no Russian PCs, so he has to use something foreign. DELLs are very solid, and great for the price if you get them refurbished.

Not as solid as Lenovo, which also has considerably fewer American companies in its supply chain. But maybe they just got a good deal on a bunch of DELLs.