Clear Microsoft Teams v2 cache

Why clear the Teams cache?

The Teams cache stores temporary information such as conversation history, recent files, and user settings. Over time, this cache can become large, cause errors, or prevent the application from launching properly. Deleting these files will:

• Resolve display or connection issues
• Free up disk space
• Speed up Teams startup
• Resolve the Unknown user issue

Étapes manuelles pour nettoyer le cache Teams

Voici les étapes classiques :

1. Fermez Teams depuis la barre des tâches (icône près de l’horloge).
2. Naviguez vers le dossier :
   %userprofile%\appdata\local\Packages\MSTeams_8wekyb3d8bbwe\LocalCache\Microsoft\MSTeams
3. Supprimez tous les fichiers présents dans ce dossier.
4. Redémarrez Teams normalement.
5. Chats and other elements are automatically downloaded on opening.

Although this method works, it can quickly become tedious for administrators or when it needs to be repeated.

To simplify the task, a PowerShell script is provided in the following section.

PowerShell script to clean Microsoft Teams v2 cache

# 1. Close Teams if it is running
$teamsProcess = Get-Process -Name 'ms-teams' -ErrorAction SilentlyContinue

if ($teamsProcess) {
    Write-Host 'Closing Microsoft Teams...'
    Stop-Process -Name 'ms-teams' -Force
    Start-Sleep -Seconds 2
}

# 2. Set the cache folder path
$cachePath = "$env:USERPROFILE\appdata\local\Packages\MSTeams_8wekyb3d8bbwe\LocalCache\Microsoft\MSTeams"

# 3. Delete all files in the cache folder in %userprofile%\appdata\local\Packages\MSTeams_8wekyb3d8bbwe\LocalCache\Microsoft\MSTeams

if (Test-Path $cachePath) {
    Write-Host 'Deleting Teams cache...'
    Remove-Item -Path "$cachePath\*" -Recurse -Force -ErrorAction SilentlyContinue
    Write-Host 'Teams cache deleted.' -ForegroundColor Green
}
else {
    Write-Host 'Teams cache folder does not exist or the new Teams version is not installed.' -ForegroundColor Yellow
}

# 4. Restart Teams
Write-Host 'Restarting Teams...'
Start-Process 'explorer.exe' 'shell:AppsFolder\MSTeams_8wekyb3d8bbwe!MSTeams'

How to use this script

• Open PowerShell (user mode is sufficient for this script).
• Copy and paste the code above.
• Run it: it will close Teams, clean the cache, then relaunch the application.