Where Them
Logs AppWTLA-01

Microsoft 365 / Office

6 log locations · Windows, macOS

Microsoft Corporation

Where Microsoft 365 / Office keeps its logs

Microsoft 365 / Office logs to %WINDIR%\Temp\ on Windows. 3 other Windows log locations are recorded below.

Microsoft 365 / Office logs to ~/Library/Containers/com.microsoft.errorreporting/Data/Library/Caches/DiagnosticReports/ on macOS. 1 other macOS log location is recorded below.

Paths are printed exactly as Microsoft 365 / Office writes them. Environment variables like %LOCALAPPDATA% and $XDG_STATE_HOME are never expanded, so a path can be pasted straight into a shell. Where a path differs between installer types or shipping flavours, each one is racked as its own card below - why that happens.

Finding your way around Windows and macOS.

WIN

Microsoft 365 / Office

Microsoft Corporation
install: *OfficeClickToRun*.log%WINDIR%\Temp\
install: *OfficeClickToRun*.log%TEMP%
crashesEvent Viewer > Applications and Services Logs > Microsoft Office Alerts
diagnostic logs sent to Microsoft%temp%\Diagnostics\UploadCache- Kept for up to 24 hours, at most 120 MB per app.
per-user
Wrong path? Add a variant
MAC

Microsoft 365 / Office

Microsoft Corporation
crash/telemetry~/Library/Containers/com.microsoft.errorreporting/Data/Library/Caches/DiagnosticReports/
per-app~/Library/Containers/com.microsoft.<Word|Excel|Powerpoint|Outlook>/Data/Library/Logs/
Wrong path? Add a variant

How to turn on debug logging for Microsoft 365 / Office

  1. Windows, install or update problems: run reg add HKLM\SOFTWARE\Microsoft\ClickToRun\OverRide /v LogLevel /t REG_DWORD /d 3.
  2. Windows, install or update problems: run reg add HKLM\SOFTWARE\Microsoft\ClickToRun\OverRide /v PipelineLogging /t REG_DWORD /d 1.
  3. Windows: restart the Microsoft Office Click-to-Run service.
  4. Windows, sign-in and activation problems: run reg add HKCU\Software\Microsoft\Office\16.0\Common\Logging /v EnableLogging /t REG_DWORD /d 1.
  5. Windows, Serviceability Manager (version 2008 or later): run reg add HKLM\SOFTWARE\Microsoft\Office\C2RSvcMgr /v EnableLocalLogging /t REG_DWORD /d 1.
  6. Remove each value with the matching reg delete command when you are done, or the log files become very large.

How to collect Microsoft 365 / Office logs

  1. Windows, install or update problems: copy %windir%\temp\officeclicktorun*.log and %windir%\temp\%computername%*.log.
  2. Windows, sign-in and activation problems: copy the MachineName-Date-time.log files from %temp%.
  3. Intune-managed devices: Collect diagnostics picks up officeclicktorun*.log automatically.
  4. Configuration Manager clients: check AlternateHandler.log for Office updates.