Microsoft 365 apps on the Windows desktop
Fix the desktop side of Microsoft 365: Outlook profiles and the offline cache, add-ins, OneDrive sync, Teams cache, repairs and activation, with the least disruptive step first.
- Level
- Intermediate
- Length
- About 55 minutes
- Contents
- 3 lessons · 1 video · final exam
- Status
- Published · updated 1 Oct 2026
Skills you'll practise
- Isolate an Outlook problem to the profile, the offline cache, an add-in or the service.
- Diagnose OneDrive sync problems (paths, names, Files On-Demand, Known Folder Move) without risking data.
- Choose between Quick Repair, Online Repair and a reset for Office and Teams.
- Explain activation messages and when they point to licensing rather than the PC.
Course outline
- 1.Microsoft 365 apps on the Windows desktopVideo · 4 min
- 2.Outlook: profile, cache, add-ins, serviceLesson · 8 min
- 3.OneDrive, Teams, repair and activationLesson · 8 min
- 4.Update channels, versions and Click-to-RunLesson · 8 min
- 5.Microsoft 365 apps on the Windows desktop: knowledge checkKnowledge check · 16 questions
- 6.Microsoft 365 apps on the Windows desktop: practical exerciseKnowledge check · 1 question
- 7.Outlook takes three minutes to openScenario
- 8.Final exam6 questions · passing it completes the course, so people who already know the material can test out
Sources it draws on
The lessons and questions are written from these references, so learners can go back to the original.
- Microsoft Support: Repair an Office application
- Microsoft Support: Restrictions and limitations in OneDrive and SharePoint
- Microsoft Support: Open Outlook in safe mode
- Microsoft Learn: Clear the Teams client cache
See it with your own jobs and topics
Tell us about your team and we'll walk you through setup, from choosing jobs to your first skills check.