To permanently close your OneDrive account, you must close your Microsoft account.
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Cancel subscriptions and make sure you do not leave anything important behind because, when you close your account, your files and folders will be deleted and they cannot be recovered.
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Sign in to Close your account, review the page, and select Next.
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For each item, select the check box to confirm you have read and acknowledged the information.
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In the drop-down list for Select a reason, select why you want to close this account, then select Mark account for closure.