Windows 10 Build 10586 is a post-RTM build of the Microsoft Windows 10 operating system. This build was released as the 6th Threshold Wave 2 build to Windows Insiders on 2015-11-05. This build is a candidate for release as the Windows 10 Fall Update. It contains fit-and-finish improvements and bugfixes, but few, if any, new features are included. The bugs that plagued many earlier TH2 builds have been fixed, and this build is the first in quite some time to be a good daily driver. The only noteworthy changes in this build are as follows: