Windows 10 build 16299.15 now available in the Slow ring October 4, 2017 by admin Tweet After offering it to the Fast ring two days ago, Microsoft is releasing the cumulative update Windows 10 for PCs build 16299.15 to Insiders that are on the Slow ring. Release Preview should be next. Read more… Neowin Related Posts:Microsoft releases new cumulative updates for…Some Xbox Insiders on the Beta update ring can now…Windows 11 (original release) gets new Release…Windows 10 22H2 Insiders get Release Preview build…Windows 11's Microsoft Store is now available for…