This update includes improvements and fixes in the functionality of Windows 10 Version 1511.
Windows 10 updates are cumulative. Therefore, this package contains all previously released fixes.
If you have installed previous updates, only the new fixes that are contained in this package will be downloaded and installed to your computer. If you are installing a Windows 10 update for the first time, the package size for the x86 version is 524 MB and the package size for the x64 version is 987 MB.
How to get this update
Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.