Clearing , Uninstall and Reinstall Teams

reinstall_teams.ps1

#Clearing , Uninstall and Reinstall Teams by Herve MUNYEKU (hmunyeku@gmail.com)
#Function to generate a timestamp that is added to the log file

function Get-TimeStamp {
    return "[{0:MM/dd/yy} {0:HH:mm:ss}]" -f (Get-Date)   
}
    
#Function to generate a log file
if ((Test-Path -Path "c:\Temp\Teams" -PathType Container) -ne $true ) {mkdir "c:\Temp\Teams" | Out-Null}
$LogFile = "c:\Temp\Teams\Teams.log"
Function LogWrite
{
    Param ([string]$logstring)
    Add-content $Logfile -value "$(Get-Timestamp) $logstring"
}

LogWrite "** STARTING Uninstall MS Teams Script **"

$clearCache = Read-Host "Do you want to delete the Teams Cache (Y/N)?"
$clearCache = $clearCache.ToUpper()

LogWrite "Do you want to delete the Teams Cache (Y/N)? --> $clearCache"

$unistall = Read-Host "Do you want to uninstall Teams completely (Y/N)?"
$unistall = $unistall.ToUpper()

LogWrite "Do you want to uninstall Teams completely (Y/N)? --> $unistall"

$reinstall = Read-Host "Do you want to reinstall after desinstallation (Y/N)?"
$reinstall = $reinstall.ToUpper()

if ($reinstall -eq "Y"){
    $uptodate = Read-Host "Do you want to download a up-to-date version for installation (Y/N)?"
    $uptodate = $uptodate.ToUpper()
    LogWrite "Do you want to download a up-to-date version for installation (Y/N)? --> $uptodate"
}

$deleteInstall = Read-Host "Do you want to delete install file after installation (Y/N)?"
$deleteInstall = $deleteInstall.ToUpper()

LogWrite "Do you want to delete install file after installation (Y/N)? --> $deleteInstall"

if ($clearCache -eq "Y"){
    Write-Host "Stopping Teams Process" -ForegroundColor Yellow
    LogWrite "Stopping Teams Process"

    try{
        Get-Process -ProcessName Teams | Stop-Process -Force
        Start-Sleep -Seconds 3
        Write-Host "Teams Process Sucessfully Stopped" -ForegroundColor Green
        LogWrite "Teams Process Sucessfully Stopped"
    }catch{
        #echo $_
        LogWrite "Unable to stop Teams Process"
        LogWrite $_.Exception.Message
    }
    

    Write-Host "Stopping Chrome Process" -ForegroundColor Yellow
    LogWrite "Stopping Chrome Process"

    try{
        Get-Process -ProcessName Chrome| Stop-Process -Force
        Start-Sleep -Seconds 3
        Write-Host "Chrome Process Sucessfully Stopped" -ForegroundColor Green
        LogWrite "Chrome Process Sucessfully Stopped"
    }catch{
        #echo $_
        LogWrite "Unable to stop Chrome Process"
        LogWrite $_.Exception.Message
    }

    Write-Host "Clearing Chrome Cache" -ForegroundColor Yellow
    LogWrite "Clearing Chrome Cache" 
    
    try{
        Get-ChildItem -Path $env:LOCALAPPDATA"\Google\Chrome\User Data\Default\Cache" | Remove-Item -Confirm:$false
        Get-ChildItem -Path $env:LOCALAPPDATA"\Google\Chrome\User Data\Default\Cookies" -File | Remove-Item -Confirm:$false
        Get-ChildItem -Path $env:LOCALAPPDATA"\Google\Chrome\User Data\Default\Web Data" -File | Remove-Item -Confirm:$false
        Write-Host "Chrome Cleaned" -ForegroundColor Green
        LogWrite "Chrome Cleaned"
    }catch{
        #echo $_
        LogWrite "Unable to clear Chrome cache"
        LogWrite $_.Exception.Message
    }
    
    Write-Host "Stopping IE Process" -ForegroundColor Yellow
    LogWrite "Stopping IE Process"
    
    try{
        Get-Process -ProcessName MicrosoftEdge | Stop-Process -Force
        Get-Process -ProcessName IExplore | Stop-Process -Force
        Write-Host "Internet Explorer and Edge Processes Sucessfully Stopped" -ForegroundColor Green
        LogWrite "Internet Explorer and Edge Processes Sucessfully Stopped"
    }catch{
        #echo $_
        Logwrite "Unable to stop Internet Explorer and Edge Processes"
        LogWrite $_.Exception.Message
    }

    Write-Host "Clearing IE Cache" -ForegroundColor Yellow
    LogWrite "Clearing IE / Edge Cache"
    
    try{
        RunDll32.exe InetCpl.cpl, ClearMyTracksByProcess 8
        RunDll32.exe InetCpl.cpl, ClearMyTracksByProcess 2
        Write-Host "IE and Edge Cleaned" -ForegroundColor Green
        LogWrite "IE / Edge cache cleaned"
    }catch{
        #echo $_
        LogWrite "Unable to clear IE/Edge cache"
        LogWrite $_.Exception.Message
    }

    Write-Host "Cleanup steps completed..." -ForegroundColor Green
    LogWrite "Cleanup steps completed..."
}

if ($uninstall -eq "Y"){
    Write-Host "STARTING Uninstall MS Teams Script" -ForegroundColor Green
    LogWrite "STARTING Uninstall MS Teams Script"

    # Removal Machine-Wide Installer - This needs to be done before removing the EXE!
    Try {
        Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -eq "Teams Machine-wide Installer"} | Remove-WmiObject
    } Catch {
        #echo $_
        LogWrite "Teams Machine-Wide Installer not found."
        LogWrite "** ENDING Uninstall MS Teams Script **"
        exit
    }

    #Variables

    if (Test-Path "$env:LOCALAPPDATA\Microsoft\Teams") {
        LogWrite "Teams found for user, uninstalling..."
        try {
        Start-Process -FilePath "$env:LOCALAPPDATA\Microsoft\Teams\Update.exe" -ArgumentList "-uninstall -s" -EA Stop|out-null
        }Catch { 
            LogWrite "Teams app Uninstall for user Failed! Error Message:"
            LogWrite $_.Exception.Message
            Out-Null
        }
        Remove-Item -recurse "$env:LOCALAPPDATA\Microsoft\Teams\"
        LogWrite "** ENDING Uninstall MS Teams Script **"            
    }
}


if ($reinstall -eq "Y"){    

    if ((Get-WmiObject win32_operatingsystem | select osarchitecture).osarchitecture -like "64*")
    {
    #64bit code here
    Write-Host "64-bit OS"
    LogWrite "64-bit OS"
    $source = "https://go.microsoft.com/fwlink/p/?LinkID=869426&culture=fr-fr&country=WW&lm=deeplink&lmsrc=groupChatMarketingPageWeb&cmpid=directDownloadWin64";
    }
    else
    {
    #32bit code here
    Write-Host "32-bit OS"
    LogWrite "32-bit OS"
    }
    $source = "https://go.microsoft.com/fwlink/p/?LinkID=869426&culture=fr-fr&country=WW&lm=deeplink&lmsrc=groupChatMarketingPageWeb&cmpid=directDownloadWin64";
    
    $destination = "c:\Temp\Teams\Teams.exe"

    if ($uptodate -eq "Y"){
        LogWrite "teams package is downloading from microsoft website to $destination"        
        [Net.ServicePointManager]::SecurityProtocol = "tls12, tls11, tls"
        Invoke-WebRequest $source -OutFile $destination
    }
    
    #If installation file exist, install teams
    if (Test-Path $destination) {
        LogWrite "Teams installation in progress"
        try {
            Start-Process -FilePath $destination -ArgumentList " -s" |out-null
            LogWrite "Teams installation completed"
            Start-Process -File "$env:LOCALAPPDATA\Microsoft\Teams\Update.exe" -ArgumentList '--processStart "Teams.exe"'|out-null
        }catch{
            Logwrite $_.Exception.Message
            LogWrite "Teams installation failed"
        }
        if ($deleteInstall -eq "Y"){
            #Delete installer
            Remove-Item -recurse $destination
            LogWrite "Teams installation file deleted"
        }
    }else{
        Logwrite "$destination not found in your system. Please try to download from website"
    }

    #install software
    Invoke-item $Logfile
}