Only ThinkPads for few decades, though I bought in China Lenovo with Thinkpad keyboard and used that for few years. W10 Pro, but if I had to reinstall I'd go fo

Only ThinkPads for few decades, though I bought in China Lenovo with Thinkpad keyboard and used that for few years. W10 Pro, but if I had to reinstall I'd go for W7 or W8.1