A possible solution to Iron Scripter 2018 prequel. Create a scheduled job that cleans up the $env:temp folder

CleanupTempFolder.ps1

$ScheduledJobName = "CleanupTempFolder"
$ScriptBlock = [ScriptBlock]::Create(@'
[System.IO.FileInfo]$LogFile = "C:\Logs\CleanTempLog.log"
if (!$(Test-Path $LogFile.DirectoryName)){New-Item -ItemType Directory -Path $LogFile.DirectoryName}
function Get-TempFileObject {
    param ($Timing)
    $TempContent = Get-ChildItem $env:temp -Recurse -Force
    [PSCustomObject]@{
            Filecount = ($TempContent | Where-Object {!$_.psiscontainer}).Count
            Foldercount=($TempContent | Where-Object {$_.psiscontainer}).Count
            TotalSizeMB=[math]::round($($TempContent | Measure-Object -Property length -Sum).Sum/1MB,2)
            TempContent=$TempContent
            TimeStamp = Get-Date
            Timing=$Timing
    }
}
$TempObject = Get-TempFileObject -Timing Before
$TempObject | Select-Object * -ExcludeProperty TempContent | export-csv $LogFile -Append -NoTypeInformation
$TempObject.TempContent.foreach{try{if($_.exists -and $_.CreationTime -lt (get-date).adddays(-1)){$_.delete()}} catch{}}
Clear-RecycleBin (get-item $env:temp).PSDrive -Force
Get-TempFileObject -Timing After | Select-Object * -ExcludeProperty TempContent | export-csv $LogFile -Append -NoTypeInformation
'@)
if (!$(Get-ScheduledJob $ScheduledJobName -ErrorAction SilentlyContinue)){
    Register-ScheduledJob -Name $ScheduledJobName -Trigger @{Frequency="Daily"; At="9:00 AM"} -ScriptBlock $ScriptBlock -RunNow
}

Install.ps1

iex ((New-Object System.Net.WebClient).DownloadString('https://gist.github.com/Agazoth/55b90d8ce261c07d7c8bd3501afb5b4a/raw/7034fbe3cf36eab5e7f87c363ef203af97c7fd0b/CleanupTempFolder.ps1'))