Upon a system's end-of-life, Microsoft operational personnel follow rigorous data handling and hardware disposal procedures to assure that hardware containing your data is not made available to untrusted parties. We use a secure erase approach for hard drives that support it. For hard drives that can’t be wiped, we use a destruction process that destroys the drive and renders the recovery of information impossible. This destruction process can be to disintegrate, shred, pulverize, or incinerate. We determine the means of disposal according to the asset type. We retain records of the destruction. All Azure services use approved media storage and disposal management services.
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