Update (4 pm ET): Microsoft has apparently reversed its decision, and is once again accepting Bitcoin. "We continue to support Bitcoin for adding money to your Microsoft Account which can be used for purchasing content in the Windows and Xbox stores. We apologize for inaccurate information that was inadvertently posted to a Microsoft site, which is currently being corrected," a Microsoft spokesperson told Softpedia.
It'll take American Express and Visa, but Microsoft is no longer accepting Bitcoin as payment for Windows Store apps.
Last week, the company quietly updated its Terms of Service to note that it has stopped accepting the virtual currency. While existing Bitcoin balances in the Windows App Store can still be used, Microsoft won't refund any unused balances.
Microsoft started accepting Bitcoin as payment for Windows apps and Xbox games in December 2014. However, this option was only available for customers in the United States, and you could use Bitcoin only to top off accounts. There was also a $100 limit on Bitcoin transfers, so the lack of full support for Bitcoin, coupled with the currency's lack of widespread adoption, may have led to a tepid response from Windows Store users.
MORE: What Is Bitcoin?
Bitcoin has been around since 2009, and has been lauded for its innovative transaction-confirmation system. However, its anonymity and decentralized structure have made it attractive to criminals, as well as to malware designed to steal Bitcoin wallets or mine Bitcoin by taking over some of the processing power of a user's PC.