Generating Easy and Secure Passwords in PowerShell

Hi Everyone,

So the other day, I found a much easier way to generate secure passwords in PowerShell. Before this, we had to have a list of all the available characters and put them into a CharArray, or ping an internet service like

Not anymore!

From now on, whenever I need to generate a password in PowerShell, I will be using the


Function from the [System.Web.Security.Membership] namespace. What this allows you to do, is generate a string of a specified length, with a specified amount of alphanumerical characters.

So if I wanted a password that was 10 characters long and had 5 alphanumerical characters, I would use:


I usually just wrap that in a function because I’ve found you need to add the ‘System.Web’ assembly and it’s cleaner to add it in the function rather than the entire script. This is my new function:

function New-RandomPassword(){
    Add-Type -AssemblyName 'System.Web'
    return [System.Web.Security.Membership]::GeneratePassword(10,5)

Hope you learnt something from this 🙂