clearTeams.ps1

param([switch]$Elevated)

function Check-Admin {
  $currentUser = New-Object Security.Principal.WindowsPrincipal $([Security.Principal.WindowsIdentity]::GetCurrent())
  $currentUser.IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator)
}

if ((Check-Admin) -eq $false) {
  if ($elevated) {
    exit
  } else {
    Start-Process (Get-Process -Id $PID).ProcessName -Verb RunAs -ArgumentList ('-noprofile -noexit -file "{0}" -elevated' -f ($myinvocation.MyCommand.Definition))
  }

  exit
}

Write-Host "Closing the Teams process" -ForegroundColor Yellow

try{
  Get-Process -ProcessName Teams -ErrorAction Ignore | Stop-Process -force
} catch {
  Write-Host "No Teams process detected" -ForegroundColor Green
}

Write-Host "Cleaning the Teams cache" -ForegroundColor Yellow

try{
  Get-ChildItem -Path $env:APPDATA\"Microsoft\Teams\Cache" | Remove-Item -Confirm:$false -force
  Get-ChildItem -Path $env:APPDATA\"Microsoft\Teams\blob_storage" | Remove-Item -Confirm:$false -force
  Get-ChildItem -Path $env:APPDATA\"Microsoft\Teams\databases" | Remove-Item -Confirm:$false -force
  Get-ChildItem -Path $env:APPDATA\"Microsoft\Teams\gpucache" | Remove-Item -Confirm:$false -force
  Get-ChildItem -Path $env:APPDATA\"Microsoft\Teams\Indexeddb" | Remove-Item -Confirm:$false -recurse -force
  Get-ChildItem -Path $env:APPDATA\"Microsoft\Teams\Local Storage" | Remove-Item -Confirm:$false -recurse -force
  Get-ChildItem -Path $env:APPDATA\"Microsoft\Teams\tmp" | Remove-Item -Confirm:$false -force
  Write-Host "Roaming cache cleaned" -ForegroundColor Green
} catch {
  echo $_
}

$challenge = Read-Host "Launch Teams? (Y/N)?"
$challenge = $challenge.ToUpper()

if ($challenge -eq "N") {
  Stop-Process -Id $PID
} elseif ($challenge -eq "Y") {
  Write-Host "Launching Teams" -ForegroundColor Yellow
  Start-Process -FilePath $env:LOCALAPPDATA\Microsoft\Teams\current\Teams.exe
  Stop-Process -Id $PID
}