Trace-GeoLocation.ps1

$ETLLog = 'c:\LocationService.etl'

# Stop the lfsvc service
$SC_lfsvc = Get-Service -Name lfsvc

if ($SC_lfsvc.Status -eq 'Running') {
    Write-Host "Stopping - lfsvc"
    $SC_lfsvc.Stop()

    # Wait until the service is stopped
    do {
        $SC_lfsvc.Refresh()
        Start-Sleep -Seconds 1
    } while ($SC_lfsvc.Status -ne 'Stopped')

    Write-Host "lfsvc has stopped."
}


# Delete files from lfsvc cache
If (Test-Path $ETLLog ) { Remove-Item -path $ETLLog -Force }
Remove-Item -Path "C:\ProgramData\Microsoft\Windows\lfsvc\cache\*" -Force -Recurse

# Create ETW session.
Start-EtwTraceSession -Name LocationService -LocalFilePath $ETLLog -RealTime

# Add provider(s) to session.
$Guid = "4D13548F-C7B8-4174-BB7A-D7F64BF22D29"
Add-EtwTraceProvider -SessionName LocationService -Guid "{$Guid}"

# Start the lfsvc service
if ($SC_lfsvc.Status -ne 'Running') {
    Write-Host "Starting - lfsvc"
    $SC_lfsvc.Start()

    # Wait until the service is stopped
    do {
        $SC_lfsvc.Refresh()
        Start-Sleep -Seconds 1
    } while ($SC_lfsvc.Status -ne 'Running')

    Write-Host "lfsvc has started."
}

# Wait for *.tile file to appear in lfsvc cache
do { Start-Sleep -Seconds 5 } until (Test-Path -Path "C:\ProgramData\Microsoft\Windows\lfsvc\cache\*.tile")

Stop-EtwTraceSession -Name LocationService