search the web for "Microsoft Research" and "Operating System", you will find the answer. I once worked for an OS company. It is difficult to replace the incum

search the web for "Microsoft Research" and "Operating System", you will find the answer. I once worked for an OS company. It is difficult to replace the incumbent commercial OS with new OS because of the ecosystem around it. I once suggested internally at the company for a different graphics stack for the OS and the next day got quite interesting reply from a very top-level tech executive at the company :) Lot of people at the companies like Microsoft, Intel etc know they have to change, but it is like moving hundreds of hundred pound gorillas at once. So either they don't do it or it takes lot of time to change. Microsoft has been, by the industry standard, very successful at managing change.