SWE Co-op applicants have rated the interview process at Microsoft with 2 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 66.3% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
2 LC Easy OA -> 2 x 45 min Interviews (Both Behavioral + Technical) -> Decision. Total time took a couple months. Interviews had basic questions, LC easy/medium loops + sliding window.