run powershell script as different user code example
Example: how to login to another user in powershell
$username = 'user'
$password = 'password'
$securePassword = ConvertTo-SecureString $password -AsPlainText -Force
$credential = New-Object System.Management.Automation.PSCredential $username, $securePassword
Start-Process Notepad.exe -Credential $credential