A snippet for keeping a credential in Windows Credential Manager

Use-WindowsCredentialManager.ps1

[CmdletBinding()]
Param(
    [Parameter(Mandatory=$false)][Boolean]$setCredentials
)

Set-Strictmode -Version 1

Import-Module CredentialManager

If ($PSCommandPath -eq $null) { 
    Function GetPSCommandPath() { 
        return $MyInvocation.PSCommandPath; 
    } 
    $PSCommandPath = GetPSCommandPath; 
}
$target = Split-Path $PSCommandPath -Leaf
$cred = Get-StoredCredential -Target $target
If ($cred -eq $null -or $setCredentials -eq $true) {
    $cred = Get-Credential
    $storedCred = New-StoredCredential -Target $target -Credential $cred -Persist LocalMachine
}