---
title: "Use an existing Certificate"
slug: "v4useanexistingcertificate"
updated: 2023-09-14T06:42:27Z
published: 2023-09-14T06:42:27Z
canonical: "help.12dsynergy.com/v4useanexistingcertificate"
excludeFromSearch: true
---

> ## 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.

# Use an existing Certificate

1. Go/login to the Server in which the existing certificate to be re-used has been installed.
2. Start > Run > MMC or Windows Key + R then type mmc  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/ce8f4b15-f70e-45af-84db-fb11f3af083c.png)
3. In the Console Tab click File > Add/Remove Snap-in  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/30ef9e65-44f0-4e5f-a8da-4d48b93b5674.png)
4. Click on Certificates > Add  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/5fdc4199-ff51-4379-8d80-4e62629fa229.png)
5. Choose Computer Account and then click Next  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/3bdfb3f5-dbe7-45ff-8ebe-fa4127df1c8e.png)
6. Click Local Computer > Finish  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/7052b312-451a-49a8-a667-3bddcf307684.png)
7. Click OK  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/40cec3a9-cf46-492a-91a9-33e464ebf537.png)
8. In MMC, 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/a4c2775f-d6fd-4849-9df1-55ad6fd33d1f.png)
9. In the next window Click on the Details tab > scroll down to the Thumbprint Field > Copy the value  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/4b0366d7-b12e-4722-b9bb-e0c32b5355f2.png)
10. Paste the value into Synergy Administration and click Set  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/356f4cf3-da46-44ad-b437-1bbf544e1a1e.png)
11. Restart the 12d Synergy server service by Start > Run > services.msc or Windows Key + R then type services.msc  
![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/7192fe0e-7267-468d-b104-fafa08b06172.png)