"After having talked to many customers, Microsoft has made the decision to simplify the distribution model of Windows in China, by taking all physical Windows media off the market," the company noted.
Although that doesn't make too much sense, Microsoft did add later that the move was made to help protect customers from malware and spyware. Many counterfeit copies sold on the streets include some type of spyware pre-installed.
China has long been one of the world's worst offenders in regards to piracy, with the BSA claiming the illegal software sales market in 2011 totaled $9 billion compared to $3 billion for legal sales.
By some accounts, pirated Windows copies account for 85 percent of the total Windows copies installed in China.