the NPU will handle all of this processing locally, allowing user data to stay “private, local, and secure on just the device.” On a Copilot+ PC with the minimum 256GB SSD, Microsoft says Recall will take up about 25GB of disk space and store around three months’ worth of events.

I haven’t upgraded to win11 and I’ll leave it to the last moment. However I have also had a go at running LLMs locally and I think the concept of Recall is pretty cool.