Business-focused versions of Windows 10 typically avoid major updates for up to a year, which can be useful if you value stability at all costs or simply don’t like change. You may not have as much room to breathe from now on.
As some have noted, Windows 10 version 2004 reduced manual deferrals of Windows 10 Pro, Enterprise, and Education updates to 35 days (for home only) and removed the Windows Update settings option in Advanced Options. If you want to defer updates, you need to change the local Group Policy to match.
This aims to “avoid confusion” and help make use of a policy aimed at PCs whose version is almost out of service, Microsoft said.
“Last year, we changed the Windows 10 update installation policies to target only devices that run a feature update version that is nearing the end of the service. As a result, many devices are updated only once a year. To allow all devices to make the most of this policy change and to avoid confusion, we removed deferrals from the Advanced Options page from Windows Update settings, starting with Windows 10, version 2004. If you want to continue taking advantage of deferrals, use local resources. Group Policy (Computer Setup> Administrative Models> Windows Components> Windows Update> Windows Update for Business> Select when preview is created and feature updates are received or Select when quality updates are received)”