Perform the following in the Azure Console:

1. Go to Storage Accounts
2. For each storage account, go to Configuration
3. Set Secure transfer required to Enabled

Perform the following in Azure Command Line Interface 2.0:

Use the below command to enable Secure transfer required for a Storage Account.

az storage account update –name <storageAccountName> –resource-group <resourceGroupName> –https-only true

References:

1. https://docs.microsoft.com/en-us/azure/storage/storage-security-guide#encryption-in-transit
2. https://docs.microsoft.com/en-us/cli/azure/storage/account?view=azure-cli-latest#az_storage_account_list
3. https://docs.microsoft.com/en-us/cli/azure/storage/account?view=azure-cli-latest#az_storage_account_update