[kerng]

Thats been true since early 2000s. Microsoft shares the Windows source code since over a decade, I don't understand why some claim it's not available and entirely closed down.

It was 2002 when I first read some of the Windows code via official Microsoft channels (Shared Source license) to unterstand some of the quirky behaviors.

[kartickv]

Can you give me a link where I can read the entire Windows 10 source code, make changes I want, and create a build, and redistribute it to people who already have a license?

I only came up with https://www.microsoft.com/en-us/sharedsource/ which has specific categories like enterprise, government security, OEMs, etc. I'm looking for something available to everyone.