I'm just scrolling by and I'd like to welcome you all to Windows Central.
Windows 10 S is more-so meant for educational purposes or someone who doesn't rely on 3rd Party Apps at all, it limits the user to ONLY Installing store apps, meaning no Google Chrome and a lot others...
It's also a bit quicker since it runs a lot less service and it's a lot more secure.
You can although get the free upgrade with Windows 10 S devices to Windows 10 Pro for the rest of the year. So if anyone gets the Surface Laptop, I'd personally go for the Pro version.
Windows 10 Pro is fully unlocked, it is although "less secure" than W10S, but you will get freedom from the App Store.