UPDATE 3/14/2016 at 5:51 PM: In a statement to Ars Technica, Microsoft says the FAQ update that prompted this story was "a mistake," and that its store will continue to accept Bitcoin. Our original story is below.
In 2014, Microsoft made a move to accept Bitcoin for Microsoft Store transactions, using BitPay as a middleman. Now, that relationship seems to be coming to an end. Without much fanfare, Microsoft has removed Bitcoin as a payment option. The company only offered a two-sentence explanation for the change in its FAQ for the Microsoft Store. Past purchases made with Bitcoin are now non-refundable thanks to the change.
A variety of competing crypto-currencies, increasing regulatory burdens, and price volatility all might have made the continued acceptance of Bitcoin a less-than-appealing prospect for Microsoft. While Bitcoin is less volatile than in its infancy, the currency still lost 30% of its value in the month after the company began accepting it before prices recovered somewhat late last year.