Does Microsoft drug test?

No, Microsoft does not drug test. Microsoft is similar to other large tech companies in that it does not care what you do on your own time as long as you can successfully perform your job and work well with your colleagues.

Not only does Microsoft not drug test, but it also does not have a drug policy. It's not uncommon for Microsoft to host morale-boosting events and parties where alcohol is served. Tobacco and vaping products are also allowed outside of the building in designated smoking areas, but are never allowed inside company vehicles.