This software is automatically downloaded when you use Boot Camp Assistant.Boot Camp supports 64-bit versions of Windows 10 when used with a supported Mac.In fact, in Windows 10 and Windows 8, the service pack, as we know it from previous versions of Windows, is essentially a dead idea.
Should you avoid the upgrade, we can take a trip to the Windows end of life page to see how long other versions will keep kicking.
If you have Windows 8.0, update to Windows 8.1 before upgrading to Windows 10.
In Windows 10 1607 (Anniversary Update), the Windows Update setting no longer offers a drop down menu to disable updates.
Microsoft regularly releases major updates to their Windows operating systems.
Traditionally those updates are service packs, but more often these days, they're semi-regular and significant updates via Windows Update.
If you purchased the USB flash drive version you can download an ISO from Microsoft and use the Windows installation key that came with your flash drive.