How to Change Minimum Windows PIN Length in Windows 11 When it comes to endpoint authentication, the Windows Hello PIN often feels like a small detail, but in cybersecurity, the small details matter most By default, Windows uses a 4-digit PIN. In enterprise environments or regulated industries. increasing the minimum PIN length is a simple way to harden authentication and reduce brute-force risk. Before we begin, be sure to subscribe to NinjaOne’s IT video hub for more tech content like this. 4 Methods for Configuring the Minimum Windows Hello PIN Length Method 1: Group Policy This is one of the most straightforward methods. It’s ideal for those using Pro, Enterprise, or Education editions of Windows 11. Here's how. Press Win + R, type gpedit.msc, and hit Enter. Navigate to Computer Configuration Administrative Templates > System > PIN Complexity. Double-click Minimum PIN length, select Enabled, and enter a number between 4 and 127. Click Apply, then OK. To apply immediately, open an elevated Command Prompt and run gpupdate /force. You can also just restart your machine. Method 2: Registry For organizations managing endpoints remotely or without Group Policy, the Registry Editor provides a direct configuration path. Press Win + R, type regedit, and press Enter. Navigate to... If the folders don’t exist, create them manually. Right-click Microsoft, New > Key, then name it PassportForWork. Right-click PassportForWork, New > Key then name it PINComplexity. In the right pane, right-click and select New > DWORD (32-bit) Value. Name it MinimumPINLength. Double-click the value, choose Decimal, and enter your desired minimum length. Open the elevated Command Prompt and then run the command gpupdate /force or restart your computer to apply the change. Method 3: PowerShell This script follows the same logic as the Registry method, but allows you to apply This makes it ideal for automating policy enforcement across multiple endpoints. Open PowerShell as administrator and run the following commands. First, use this to create the registry path if it doesn’t exist. Next, use this command to enforce the minimum PIN length (in this case, 6). For full PowerShell deployment scripts and automation best practices, check out our blog post Method 4: .REG Files This method allows for quick deployment or distribution via email or shared drive. Before we start, always validate .reg files before distribution to avoid accidental misconfiguration. Here are the steps. Open Notepad and paste the following. Save the file as set_min_pin_length.reg. Right-click and choose Run as Administrator. Restart or run gpupdate /force. Increasing pin length is one of the simplest, most effective ways to tighten endpoint authentication. Use Group Policy for local control or on-premises domains, Registry Editor for manual configuration, and either PowerShell or .reg files for automated or remote deployment. For more information, check out our official blog post on How to change the minimum Windows PIN length in Windows 11 Linked in the description below.