MD of PC Doctor of Computers typically offers both appointment-based and walk-in services for repair needs. However, the availability of walk-in services may vary depending on the specific location and current operational guidelines. It is often advisable to schedule an appointment to ensure that a technician is available to assist you promptly upon your arrival. Additionally, an appointment can help minimize your wait time and allow for better planning of repair services. For more detailed information regarding their policies on walk-ins and appointments, it may be helpful to visit the current web page or contact the service directly, as they will provide the most accurate and up-to-date guidance.