Cumulative Update for Windows 10: August 5, 2015
This update includes non–security-related changes to enhance the functionality of Windows 10 through new features and improvements.
Windows 10 updates are cumulative. Therefore, this package contains all previously-released fixes (see KB 3074683). If you have installed previous updates, only the new fixes that are contained in this package will be downloaded and installed to your computer.
I counted over 3,900 files in this package.
To manually run Windows update in Win10:
Go to Start > Settings > Update & security > Windows Update > Check for updates.