


It will likely contain failure information. The %AppData%\Microsoft\Teams\logs.txt file is used by the Teams app (specifically Teams.exe) to record significant application events.The %LocalAppData%\Microsoft\Teams\SquirrelSetup.log file is written by Update.exe, which is an executable that services the Teams app.Another log file of interest is %AppData%\Microsoft\Teams\logs.txt. When Teams is successfully installed, the log location switches from %LocalAppData%\SquirrelTemp to %LocalAppData%\Microsoft\Teams\SquirrelSetup.log. If %LocalAppData%\SquirrelTemp\SquirrelSetup.log doesn't indicate the cause or if you need more information to troubleshoot the issue, see Collect and analyze application and system logs. It can be easier to compare your log against the log from a successful installation (even on another machine) to see what's expected. Note that call stacks at the beginning of the log may not mean that an installation issue exists. The first thing to look for is an error message or a call stack near the end of the log. When Teams is installed, the Teams installer logs the sequence of events to %LocalAppData%\SquirrelTemp\SquirrelSetup.log. Troubleshoot installation and update issues Troubleshoot installation issues If you see a failure message or if the version number is the same as in step 4, the update process failed. Wait until Teams restarts, and then repeat step 1 to see whether the app is updated.The banner also lets you know if you’re already running the latest version in which case, no update is necessary. The link should be shown about a minute later as this process downloads the new version of Teams.


This article provides guidance for how to diagnose and troubleshoot installation and update issues for the Teams desktop client app running on Windows.
