Back in January, we learned that Windows 10 would be designed to use many features that are already available on the Xbox One, including Xbox Live. However, it seems that PC users will not have to pay extra for these features.
According to a recent tweet from Larry Hryb, the head of Xbox Live, Microsoft will not be charging Windows 10 users for Xbox Live features; he stated that Xbox Live Gold subscriptions will not be required for online multiplayer gaming on Windows 10 PCs and phones.
@haydencd Not charging. Xbox Live Gold will not be required for online multiplayer gaming using our service on Windows 10 PCs and Phones
— Larry Hryb (@majornelson) March 5, 2015