Function Get-Decision ( $Decision ) { Switch ( $Decision.toupper() ) { "Y" { $Decision = $True } "N" { $Decision = $False } Default { "Enter a ''Y'' for Yes or a ''N'' for No." ; $Decision = $null Get-Decision $( Read-Host $Question ) } } Return ( $Decision ) } $Question = "Remove files?" Get-Decision $( Read-Host $Question )