Win11Debloat/Scripts/Helpers/CheckIfUserExists.ps1

function CheckIfUserExists {
    param (
        $userName
    )

    if ($userName -match '[<>:"|?*]') {
        return $false
    }

    if ([string]::IsNullOrWhiteSpace($userName)) {
        return $false
    }

    try {
        $userExists = Test-Path "$env:SystemDrive\Users\$userName"

        if ($userExists) {
            return $true
        }

        $userExists = Test-Path ($env:USERPROFILE -Replace ('\\' + $env:USERNAME + '$'), "\$userName")

        if ($userExists) {
            return $true
        }
    }
    catch {
        Write-Error "Something went wrong when trying to find the user directory path for user $userName. Please ensure the user exists on this system"
    }

    return $false
}