Hi, Abdul.
Most likely, this is because it is Azure-managed, so patching will be managed by Azure.
Even though you may not have this in a domain, it will be controlled by local group policy.
You can check the settings and if needed delete them by navigating to their registry location (or opening gpedit.msc, locally and navigating to the policy path):
https://admx.help/?Category=Windows_10_2016&Policy=Microsoft.Policies.WindowsUpdate::AutoUpdateCfg