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Now you can grant your VM access to files and folders in an Azure Data Lake Store. For this step, you can use an existing Data Lake Store or create a new one. To create a new Data Lake Store using the Azure portal, follow this [Azure Data Lake Store quickstart](https://docs.microsoft.com/azure/data-lake-store/data-lake-store-get-started-portal). There are also quickstarts that use the Azure CLI and Azure PowerShell in the [Azure Data Lake Store documentation](https://docs.microsoft.com/azure/data-lake-store/data-lake-store-overview).
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Your VM's system-assigned managed identity can now perform all operations on files in the folder you created. For more information on managing access to Data Lake Store, read this article on [Access Control in Data Lake Store](https://docs.microsoft.com/azure/data-lake-store/data-lake-store-access-control).
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## Get an access token using the VM's system-assigned managed identity and use it to call the Azure Data Lake Store filesystem
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## Access data
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Azure Data Lake Store natively supports Azure AD authentication, so it can directly accept access tokens obtained using managed identities for Azure resources. To authenticate to the Data Lake Store filesystem you send an access token issued by Azure AD to your Data Lake Store filesystem endpoint, in an Authorization header in the format "Bearer <ACCESS_TOKEN_VALUE>". To learn more about Data Lake Store support for Azure AD authentication, read [Authentication with Data Lake Store using Azure Active Directory](https://docs.microsoft.com/azure/data-lake-store/data-lakes-store-authentication-using-azure-active-directory)
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Using other Data Lake Store filesystem APIs you can append to files, download files, and more.
In this tutorial, you learned how to use a system-assigned managed identity for a Windows virtual machine to access an Azure Data Lake Store. To learn more about Azure Data Lake Store see:
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