> For the complete documentation index, see [llms.txt](https://help.iodd.kr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.iodd.kr/aes256-encryption-mini-pro-st-lk/admin/set-admin-password.md).

# Set admin Password

When multiple users share an IODD ST/LK device, the **Administrator Mode** allows for the management of individual user passwords and specific drive permissions. Administrators have the authority to reset user passwords and are the only ones capable of removing encryption from the entire device.

### Prerequisites

{% hint style="warning" %}
**2nd Password Requirement** You must configure the **2nd Password** before you can set the Admin Password. Refer to: [2nd Password Setup Guide](/aes256-encryption-mini-pro-st-lk/admin/2nd-password.md)
{% endhint %}

***

### Step-by-Step Setup

1. Press the **Menu button** and navigate to: **\[Encryption] - \[Admin]**.

   <figure><img src="/files/HBgfLyDPWDAksTI3x26h" alt="Encryption Admin Menu"><figcaption><p>Accessing the Administrative encryption settings.</p></figcaption></figure>
2. Select the **\[Set Encryption]** option and review the caution message.

{% hint style="danger" %}
**Data Loss Warning** Enabling or deleting the Admin password will **initialize (erase) all data on the disk**. Ensure all important files are backed up before proceeding.
{% endhint %}

<figure><img src="/files/7MIaci4KaTUAwMMb3KFQ" alt="Encryption Caution Message"><figcaption><p>Read the warning carefully before initiating encryption.</p></figcaption></figure>

3. Enter your desired **Admin Password twice** for confirmation.

   <figure><img src="/files/8FRpyto4XQk3Brq5dd9Q" alt="Admin Password Entry"><figcaption><p>Input the administrator password using the keypad.</p></figcaption></figure>
4. Wait for the process to complete. Once finished, the disk is initialized, and the screen may display **\[No appropriate partition]** because the drive is now unformatted.

   <figure><img src="/files/YkVXJdANp3mtqOsStwgW" alt="No Partition Message"><figcaption><p>Disk initialization successful; formatting is required for use.</p></figcaption></figure>
5. Reconnect the IODD. You will now be prompted for the password. To log in as the administrator, you must enter the **prefix "0"** followed by your password.

   <figure><img src="/files/WOOJjCRJxn014qEWuRjv" alt="Admin Login Screen"><figcaption><p>Log in using the 0 + [Admin Password] format.</p></figcaption></figure>

***

### Understanding the Password Structure

The IODD login system uses a prefix to distinguish between the administrator and general users.

{% hint style="info" %}
**Login Format: \[User ID] + \[Set Password]**

* **0**: Administrator Identification Digit
* **1–4**: User Identification Digits

**Example:** If you set the administrator password to `55447788`, the final login code is **0**55447788.
{% endhint %}

{% hint style="warning" %}
**Authentication Errors** If you receive a "Wrong Password" error despite entering the correct numbers, check if you omitted the **`0`** prefix. The system does not add the administrator ID automatically during the login prompt.
{% endhint %}

***

### Next Steps

After setting the password, you may need to format the drive or set up virtual drives.

* [Using Virtual Drives with Encryption](/bootable-virtual-drive/mode-configuration.md)