I am not at all confident that this is true. If we take Microsoft at their word, the raw data is stored on your device. But is processing ever done on Microsoft servers? Are the results of that processing ever sent to Microsoft servers?
Given that Microsoft is pretty aggressive about moving Windows to being an OS-as-a-service, it's hard for me to think that all the data Windows handles stays on-device.
I am not at all confident that this is true. If we take Microsoft at their word, the raw data is stored on your device. But is processing ever done on Microsoft servers? Are the results of that processing ever sent to Microsoft servers?
Given that Microsoft is pretty aggressive about moving Windows to being an OS-as-a-service, it's hard for me to think that all the data Windows handles stays on-device.