A user contacted me this morning about this.
Use the registry
Copy/paste this into notepad and name it block11.reg ( not .txt):
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate]
“TargetReleaseVersion”=dword:00000001
“TargetReleaseVersionInfo”=dword:00002212
Download it: https://www.tweakhound.com/win10/block11.zip
Fantastic