This April 12, 2016 file photo shows the Microsoft logo in Issy-les-Moulineaux, outside Paris, France. Microsoft took five hours to resolve a major outage of its workplace applications on Monday, but has not clarified what caused the outage. The company said the outage, which affected users’ ability to log into Office 365 applications, began early evening Monday Eastern time. Microsoft did not reply to questions Tuesday, Sept. 29, 2020 about what caused the outage, but said on its service-status Twitter account that it had identified a “recent change” that caused problems. (AP Photo/Michel Euler, File)

This week, Microsoft had a big test on its hands—how to help transform the world’s biggest gadget show into an online-only event.

The choice of Microsoft to power this year’s CES and create a virtual showcase for its 1,800 exhibitors gave the tech giant a big promotional boost over its best-known cloud computing rivals, Amazon