You can ask Microsoft for access to Windows source code. https://www.microsoft.c...

geofft on Feb 22, 2019 | parent | context | favorite | on: Redis Labs Changes Its Open-Source License Again

You can ask Microsoft for access to Windows source code. https://www.microsoft.com/en-us/sharedsource/ Any definition of "open source" that includes Windows is so vague as to be useless.

dcbadacd on Feb 24, 2019 [–]

But that's asking, it's closed until "opened", not "open" per se.