do l need and appointment to bring my computer in for repair

Geek Squad is booked solid much of the time. It really helps to have appt. Although they did squeeze me in after a couple hours wait

No appointment necessary, but it might help with the wait if there's other people there.

nope

you may not be required to if they are not busy, but if they have existing customers already scheduled, they will require you to make an appointment.

No