Google Chrome and Windows 10 S: The new Windows 10 S operating system that Microsoft revealed is limited to running apps only through the Windows Store, and the company confirmed that users will not be able to change the default browser and search engine, which means that it will only work with Edge and Bing.
This will of course be a big problem for fans of other browsers (Firefox, Chrome, etc.) because other browsers are not available in the Windows Store. However, it seems that even if Google were to release an app through the Windows Store, users of the new operating system would still not be able to use it. 
A post on ZDNet mentions special requirements for Windows Store apps that apply exclusively to browsers and that a version of Google Chrome would not be able to comply with.
“Your app must not compromise user safety or the security or functionality of the device, system, or related systems. Web browsing apps must use the appropriate HTML and JavaScript engines provided by the Windows platform,” the Windows Store guidelines state.
Microsoft offers developers a set of tools codenamed Project Islandwood that make it possible to port Win32 software into UWP (Universal Windows Platform) applications.
In theory, if Google wanted to release the desktop version of Chrome in the Windows Store, it would have to use Project Islandwood's tools, but according to the above requirements, the search company would need to develop the browser from scratch using Microsoft's rendering engine and JavaScript interpreters.
Microsoft cites security reasons for these restrictions, with a company spokesperson explaining that Edge operates in a sandbox environment, protecting users from potential malware and exploits. Other browsers would have to do the same (have a sandbox environment), and so they would have to be developed from scratch using Microsoft technology.
