---
title: "Adding a Certificate(s) in 12d Synergy"
slug: "v5addingacertificatesin12dsynergy"
tags: ["Microsoft Management Console", "Certificates snap-in", "Thumbprint ", "Certificates", "HTTPS Setup", "Use HTTPs for secure transfer"]
updated: 2026-05-06T02:44:26Z
published: 2026-05-06T02:44:26Z
canonical: "help.12dsynergy.com/v5addingacertificatesin12dsynergy"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.12dsynergy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Adding a Certificate(s) in 12d Synergy

Admin Content

## Prerequisites

> [!NOTE]
> - This guide assumes that the Windows machine, hosting **12d Synergy Server**, already has a certificate installed.
> - If not, please install a certificate using the procedure mentioned in [How to Add a Certificate(s) to Windows](/v1/docs/v5howtoaddacertificatestowindows-1).
> - The Certificate must have a private key, and it must be installed in the following locations.
>   - **Microsoft Management Console > Console Root > Certificates (Local Computer) > Personal**
>   - **Microsoft Management Console > Console Root > Certificates (Local Computer) > Trusted People**

1. Log in to the Server on which the existing certificate to be re-used has been installed.
2. Click the **Windows Start** button, type **Run** and select the **Run** app. Alternatively, press the **Windows** + **R** keys together.
3. Type **mmc**. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-9tdoafia.png)
4. Click the **OK** button. The **Microsoft Management Console** window is displayed. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-sz9wpbuh.png)
5. In the **File** menu option, select the **Add/Remove Snap-in** option. The **Add or Remove Snap-ins** prompt is displayed. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-u79b1vos.png)
6. In the **Available Snap-ins** section, click the **Certificates** snap-in.
7. Click the **Add >** button. The **Certificates snap-in** prompt is displayed. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-ls9bobbb.png)
8. Select the **Computer account** option and click the **Next** button. The **Select Computer** prompt is displayed. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-bdt2nj80.png)
9. Select the **Local computer** option and click the **Finish** button. In the **Add or Remove Snap-ins** prompt, the **Certificates (Local computer)** snap-in is moved to the **Selected snap-ins** section. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-sfhl0tj9.png)
10. Click the **OK** button.
11. In the **Microsoft Management Console** window, navigate through to **Console Root > Certificates (Local Computer) > Personal > Certificates** and locate your certificate and double-click it. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-mb9b177b.png) The **Certificate** dialog is displayed.
12. Click the **Details** tab.
13. Select the **Friendly name** field. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/fname.png)

> [!NOTE]
> If you are working with [ACME](/v1/docs/whatisacme), then selecting the **Friendly name** field is preferred. **Thumbprint** is NOT preferred.
14. Copy the value of the **Friendly name** from the box displayed below the list in the above prompt.
15. In the **12d Synergy Administration** application, select the **System Settings tab > SSL Certificates tab > Use an Existing Certificate tab**.
16. Paste the value of the friendly name in the **Certificate Identifier** box, and click the **Set** button. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/sslcert.png)
17. In the **System Settings tab > Web Access tab**, do the following: ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/webaceess.png)
  1. Select the **Use HTTPs for secure transfer** check box.
  2. Select the **HTTPS Setup** tab.
  3. Click the **From 12d Synergy** button. The thumbprint is displayed in the **Certificate thumbprint** box.
  4. Click the **Save** button.
18. Restart the **12d Synergy Server** service by doing the following:
  1. Click the **W**indows **Start button > Run** prompt **>** type **services.msc**. Alternatively, press the **Windows+R** keys simultaneously and then type **services.msc**. The **Services** window is displayed.
  2. Right-click the **12d Synergy Server** service and select the **Restart** option. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5addingacertificatesin12dsynergy.doc-image-g6noge33.png)

> [!NOTE]
> You can also restart the 12d Synergy Server by clicking the **Restart** button in the **12d Synergy Administration application > General tab >** **Maintenance tab > Restart** tab.

The 12d Synergy Server service is restarted, and the new certificate is loaded.