How exactly would MS save money by using linux if they already own Windows? Easy. They replace those hundreds of expensive programmers who do nothing but maint

How exactly would MS save money by using linux if they already own Windows? Easy. They replace those hundreds of expensive programmers who do nothing but maintain the Microsoft kernel with thousands of free programmers maintaining the Linux kernel. Notice I said 'Microsoft kernel' rather than 'Windows kernel'. That was to distinguish the Windows 'look and feel' code from the underlying invisible OS code. Those hundreds of Windows (Desktop) programmers will remain. It's very likely that you won't notice the difference between Windows with a Microsoft kernel and Windows with a Linux kernel.