This PowerShell script generates a random string for a one-time password and copies it to the clipboard. It is convenient to register in your launcher.

one_time_password.ps1

param(
  [Int32] $password_length = 15
)

$numbers    = 0..9
$lower_case = @('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z')
$upper_case = $lower_case.toUpper()
$symbols    = @('-','+','_','@','=','&','$','#','!','?')
$inputs     = $numbers + $lower_case + $upper_case + $symbols 

# Round up
$count = [Math]::Ceiling($password_length / $inputs.Length * [Math]::Pow(10, 0)) / [Math]::Pow(10, 0)

$long_strings = -Join (
  1..$count | ForEach-Object {
    Get-Random -Count $inputs.Length -input $inputs
  }
)

$long_strings[0..($password_length-1)] -Join '' | Set-Clipboard; Get-Clipboard


Read-Host "Press ENTER to continue..."