Windows 10 S is microsoft's answer to the Google Chrome OS, it will come pre-loaded onto the new Surface PRO laptops.
It's supposed to be more secure the the usual Windows 10 OS as only apps from the Windows Store can be downloaded, also you can only use "Edge" as a browser so you will have to use "Bing" for a search engine.
If you have spare PC/Laptop or have a dual boot system, why not give it a try.
Here's the link:
http://axeetech.com/2017/06/18/download-windows-10s-iso-file-direct-download-link/?_utm_source=1-2-2
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