Microsoft is giving customers until that day to transfer their information. The company suggests transferring data to other health record providers, particularly Get Real Health for US and international users or FollowMyHealth for US customers. The email reads:

"If you are using an Application (mobile, web, etc.) that is dependent on the HealthVault service, such applications may also stop working once the HealthVault service is shut down. Please reach out to the Application provider for information on their plans."

Two years ago, Microsoft discontinued its Band fitness wearable even though it originally had future plans for it. And earlier this year, it announced that it's shutting down Health Dashboard and pulling down all Band apps on May 31st. Still, HealthVault did outlast the Google Health initiative that opened in 2008, and then closed in 2012 to make way for Google Fit.