Technically they probably could... but whats the point?
I would think that the cost to move all that already exists on windows to a Linux kernel would cost many millions and don't see how it would make its money back over even a decade out.
It only makes sense to invest such a large amount of money if Windows was the future of Microsoft which is not where the company is aligned anymore.
If Microsoft was to adopt Linux it will likely be for a new OS (say for wearables, IOT, server or embedded), rather then existing ones, as in this case it would likely be cheaper then building from scratch.
I would think that the cost to move all that already exists on windows to a Linux kernel would cost many millions and don't see how it would make its money back over even a decade out.
It only makes sense to invest such a large amount of money if Windows was the future of Microsoft which is not where the company is aligned anymore.
If Microsoft was to adopt Linux it will likely be for a new OS (say for wearables, IOT, server or embedded), rather then existing ones, as in this case it would likely be cheaper then building from scratch.