@HealthPrime why do you want to only have US and India, blocking every other country will make your internet experience appalling as the whole concept of the internet is that it is de-centralised so CDNs are usually distributed around the world for best availability.
Country blocking is usually used in a more limited manor, i.e. to block a particular country or region.
The Meraki list is also not always completely up to date so you may well see unusual results.
For MS updates and activations you could use SCCM or WSUS and your own activation server.
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