those are not knockoffs,but DIY counter or shop,no named brand,Do It Yourself,at your own interest and risk.most these DIY shops only exist in electronic components shopping malls,visitors of such malls of course prefer DIY. Most normal people just buy named brand computers pre-installed OS in normal malls,electrical shops，brand stores,and even in big supermarkets such as Carrefour. so I am very strange and shocking that Apfel can not buy a named brand computer pre-installed legal OS in the third largest city of china