I am not sure about Microsoft's interview questions, but I will share you the questions I encountered when I was looking for a job as a software developer.

a. Write a program that generates the prime number from 1 to 50 ( I was given an option to choose the language of my choice).
b. What is relational database?
c. Write SQL commands to delete the entire row/columns! ( Definitely go through the basic SQL commands)
d. Differences between recursion and iteration.
e. Situtation where recursion can be useful?/ situation where recursion can be fatal?
f. What is deadlock in operating system?Ways to avoid deadlock?

I hope it helps to get you going.
Good luck, bud!