Anderton
If I were Microsoft, I'd see if I could acquire SONAR Home Studio and make it the "Windows GarageBand."
Maybe. But MS would need to find an answer to the doc latency issues that PCs can suffer from first. Doesn't look very good when your customers can only get latency of 50ms+ without crackling and pops and "disable the wi-fi/external USB gadgets/whatever and go buy a different widget" doesn't give a good impression to customers. Especially ones knowing nothing about Windows and DAWs.
And if altering BIOS settings, cpu parking and setting up customs power schemes is required I suspect that's beyond the ability of Mr/MS AveragePC User.
All this gets multiplied on laptops where there's no proper access to the full BIOS and fixed internal hardware.
I may well be wrong, but I've thought for a long time that the reason MS have never competed wit Garageband is (1) they've no product to use it as a loss leader for and (2) getting to the state where all PCs "just work out of the box" as an acceptable DAW, even at Garageband levels, is pretty much impossible.
Maybe it's possible on MS produced hardware, but on all the thousands and thousands differently configured PC models churned out by hundreds of manufacturers every year?