Only one time interview, then waited for a couple of weeks and they will go to details for training and going in to the Microsoft Store, and there are no longer of it.

3 step interview process: phone call --> in person main interview with one of the managers --> final interview for the on boarding process (if you get to this point, you basically will get the job

This is how mine went down. Recruiter emails you if they like your resume, and asks you for a set time for phone interview. After a series of questions of who you are, why microsoft, and past experiences regarding your job and why it would help microsoft, a manager from the store will call you if they like you. From there set up an interview, and ask the same questions just worded differently. If they like you, they can notify you as soon as one day or up to a week. Sometimes it doesnt hurt to go back in and ask for an update after a few days. Dont be shy and say that you like microsoft because of ___, ___, etc., and talk about there products.