How to change sid windows server 2019

Last Updated: Feb 8, 2024 by

When setting up a new Windows Server 2019, one of the first things you may want to do is change the Security Identifier (SID). The SID is a unique identifier assigned to each user, group, and computer on a network. Changing the SID can help with server management and security, as it ensures that each server has a unique identifier. In this article, we will discuss how to change the SID on a Windows Server 2019.

What is a SID?

Before we dive into the steps for changing the SID, let’s first understand what it is. As mentioned, the SID is a unique identifier assigned to each user, group, and computer on a network. It is used by Windows to control access to resources and maintain security. Each SID is a string of alphanumeric characters, and no two SIDs are the same.

Why Change the SID?

There are a few reasons why you may want to change the SID on your Windows Server 2019. One reason is for server management purposes. By changing the SID, you can ensure that each server has a unique identifier, making it easier to manage and troubleshoot any issues that may arise.

Another reason is for security purposes. If you have multiple servers with the same SID, it can make your network more vulnerable to attacks. By changing the SID, you can add an extra layer of security to your network.

Steps for Changing the SID

Now, let’s get into the steps for changing the SID on your Windows Server 2019.

  1. The first step is to download the Sysinternals tool called “NewSID.” This tool is specifically designed for changing the SID on Windows servers.
  2. Once you have downloaded NewSID, extract the files and save them to a location on your server.
  3. Next, open the Command Prompt as an administrator.
  4. Navigate to the location where you saved the NewSID files using the “cd” command.
  5. Once you are in the correct directory, type in the following command: newsid.exe
  6. Replace with the new SID you want to assign to your server. You can generate a new SID using a tool like the “PsGetSid” utility.
  7. Press Enter and wait for the process to complete.
  8. Once the process is complete, restart your server.
  9. After the server has restarted, you can verify that the SID has been changed by opening the Command Prompt and typing in the following command: whoami /user
  10. The output should display the new SID that you assigned to your server.

Conclusion

Changing the SID on your Windows Server 2019 can help with server management and security. By following the steps outlined in this article, you can easily change the SID and ensure that your server has a unique identifier. This can help with troubleshooting and add an extra layer of security to your network. Have you ever changed the SID on a Windows Server? Let us know in the comments.

Gulrukh Ch

About the Author: Gulrukh Ch

Gulrukh Chaudhary, an accomplished digital marketer and technology writer with a passion for exploring the frontiers of innovation. Armed with a Master's degree in Information Technology, Gulrukh seamlessly blends her technical prowess with her creative flair, resulting in captivating insights into the world of emerging technologies. Discover more about her on her LinkedIn profile.

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