TeamsCacheClear.ps1

<#
This Sample Code is provided for the purpose of illustration only and is not intended to be used in a production environment. 
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#>
$Cleanup = Read-Host -Prompt 'Do you wish to initiate the MSTeams cache cleanup process? (y|n)'
    If($Cleanup -eq 'y')
    { #Begin IF1
        $message = "This process will close out of Microsoft Teams - any ongoing Teams calls/meetings will be disconnected. Are you sure?"
        $yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Yes"
        $no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "No"
        $options = [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no)
        $choice=$host.ui.PromptForChoice($title, $message, $options, 1)
         if ($choice -eq 0)
            {
            # get Teams process
            Write-host "Closing Microsoft Teams, Standby..." -ForegroundColor Green
                $msTeams = Get-Process teams -ErrorAction SilentlyContinue
                    #Detect if Teams is running and if so, kill task
                    $MicrosoftTeamsopen = $msTeams
                        If ($MicrosoftTeamsopen -ne $null)
                        {
                        $msTeams | Stop-Process -Force
                        }
                #Sleep for 10 seconds to free up in use files
                Write-Host "Waiting for process to close completely...standby"
                Start-Sleep -s 10
                #define base path to Teams app data folder
                Write-host "Collecting environment variables and building folder locations, Standby..." -ForegroundColor Green
                $appdataFolder = Get-ChildItem Env:APPDATA | Select Value | ft -HideTableHeaders| Out-String
                $appdataFolder = $appdataFolder -replace "`t|`n|`r",""
                $msteamsAppDataFolder = $appdataFolder + '\Microsoft\Teams'
                #folder paths to be cleaned up
                $teamsAppCacheFolder = $msteamsAppDataFolder + '\Application cache\cache\'
                $teamsBlobStorageFolder = $msteamsAppDataFolder + '\blob_storage\'
                $teamsCacheFolder = $msteamsAppDataFolder + '\Cache\'
                $teamsdatabaseFolder = $msteamsAppDataFolder + '\databases\'
                $teamsgpuCacheFolder = $msteamsAppDataFolder + '\GPUcache\'
                $teamsindexDbFolder = $msteamsAppDataFolder + '\IndexedDB\'
                $teamslocalStorageFolder = $msteamsAppDataFolder + '\Local Storage\'
                $teamstmpFolder = $msteamsAppDataFolder + '\tmp'
                #Create new, empty array
                $msTeamsPathArray = @()
                #Enumerate script-defined varibles beginning with "teams" from previous step
                $msTeamsLocationList = Get-Variable | Where-Object {$_.Name -like 'teams*'} | select value
                #Add teams folder locations into previously defined empty array 
                $msTeamsPathArray += $msTeamsLocationList
                #loop through each folder path in the array and recursively delete items
                Write-host "Initiating Teams folder/cache cleanup, Standby..." -ForegroundColor Green
                    Foreach ($object in $msTeamsPathArray)
                        {
                        $folderExist = Test-Path $object.value
                           Write-host "Location $object Detected? $folderExist"
                            If ($folderExist -eq $true)
                            {
                            Write-host "Folder $object detected. Deleting ..." -ForegroundColor Yellow
                            Remove-Item -Path $object.value -Recurse -Force
                            }
                        }
                #loop through each folder path in the array and recursively delete items
                Write-host "Performing folder removal check, Standby..." -ForegroundColor Green
                    Foreach ($object in $msTeamsPathArray)
                        {
                        $folderExist = Test-Path $object.value
                           Write-host "Location $object Detected? $folderExist"
                            If ($folderExist -eq $true)
                            {
                            Write-host "Additional cleanup required.  Folder $object detected. Deleting ..." -ForegroundColor Yellow
                            Remove-Item -Path $object.value -Recurse -Force
                            }
                        }
                #Remove msteams entries in credman for user
                Write-host "Removing ADAL cache credentials from Windows Credman, Standby..." -ForegroundColor Green   
                $keys = cmdkey /list
                $targets = $keys | Select-string -Pattern  "msteams"
                $targets | Sort-Object
                    Foreach($target in $targets)
                        {
                        $target = $target -replace "Target: ",""
                        $target = $target -replace " ",""
                        write-host $target
                        cmdkey -delete:$target
                        } 
                  #Finish
                  Write-host "Finished - Please restart Microsoft Teams from Start menu." -ForegroundColor Cyan
            }
    }
#FOR TESTING ONLY. Remove all declared variables.  Get-Variable -Exclude PWD,*Preference | Remove-Variable -EA 0