Disclosed are various embodiments for provisioning client devices. A configuration file previously installed on the computing device can be read. The configuration file can contain a provisioning address. Then, a user account is automatically created using a predefined username and credential stored in the configuration file. Next, an enrollment request can be sent to the provisioning address to enroll the computing device with a provisioning service using the user account. In response, an enrollment response can be received from the provisioning service. The computing device can then be configured based upon the enrollment response.