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How to Find Security Identifier (SID) of any User in Windows 11/10

Get the SID of any user in Windows 11/10, which can be used to grant or deny permissions to files and folders, or troubleshoot access problems.

This article shows you how to Find Security Identifier (SID) of any User in Windows 11/10 using the Command Prompt, Windows PowerShell, or the Batch File. A Security Identifier, or SID, is a unique code that can be used to find any user, group, or computer account across all Windows Operating Systems. They are made when a user account is made, and since they are unique, no two SIDs on the same computer will ever be the same. A Security ID is another name for it. This unique ID is used by the operating system so that names like “Personal” or “Dad” or anything else that we set don’t show up.

This also means that even if you change your username or display name, it won’t change anything that was already set up for that account, because everything is tied to the SID, which stays the same even if you change your username or display name. SIDs are important to systems because each user account is tied to a string of alphanumeric and numeric characters that can’t be changed.

Changes to the username won’t affect the user’s access to system resources, and if you delete a username and someone later tries to create an account with your old username, you won’t be able to use the resources again because the SID is unique to each username and isn’t the same in this case.

What Is SID

In Microsoft Windows NT line systems, the SID (Security Identifier) or Windows user SID identifies a security principle or security group. This is the only value that makes sense. What’s the meaning of SID? From this point of view, you could say that the Windows user SID is like a passport that is given to every computer when the operating system is installed. With the help of their SIDs, you can give certain user accounts special rights or limit what those user accounts can do.

Why Finding SIDs is Important

  • To prevent SIDS deaths: SIDS is the leading cause of death among infants aged 1 month to 1 year. By understanding the risk factors for SIDS and taking steps to reduce these risks, parents and caregivers can help to prevent SIDS deaths.
  • To improve our understanding of SIDS: SIDS is still a poorly understood condition. By finding SIDs cases and conducting research on these cases, we can learn more about what causes SIDS and how to prevent it. Please visit the Windows official website for further information.
How to Find Security Identifier (SID) of any User in Windows 11/10
  • To support bereaved families: The death of a child to SIDS is a devastating experience for families. By finding SIDs cases, we can provide support to bereaved families and help them to cope with their loss.

How to Find Security Identifier (SID) of any User in Windows 11/10

Using the Command Prompt

  1. Open the Command Prompt.
  2. Type the following command and press Enter:
wmic useraccount get name,sid
  1. A list of all users on the computer will be displayed, along with their SIDs.

Use a PowerShell Cmdlet

  1. Pressing Win+R will bring up the Run box. To open PowerShell, type powershell in the box and press Ctrl + Shift + Enter.
  2. The window for User Account Control will appear. If asked, click the “Yes” button to open the app as an administrator.
  3. Press the Enter key after typing the following command:
  4. Get-WmiObject win32_useraccount | Choose name,sid
  5. With the above command, all of the user accounts and their SIDs will be shown. Run the following command to save the results as a text file:
  6. Get-WmiObject win32_useracount | Select name,sid > C:SID.txt
  7. The file will be saved in the C drive because of the command. Use File Explorer to go to the location and open the file in a text editor app.
  8. Close the window for PowerShell.

Using a Batch File

  1. To go to the Desktop, press Win + D.
  2. Right-click on a blank spot on your desktop and select “New > Text Document.”
  3. There will be a new text file on the desktop. If you double-click on the file, it will open in a window called Notepad.
  4. Now, copy and paste the code below into the Notepad file:
  5. @echo off cmd.exe /k wmic username get name,sid pause
  6. To open the Save as window, press Ctrl + Shift + S. Keep the file name as SID.bat and leave the Save as Type field as All Files.
  7. When you open Terminal, it will show you a list of all the users on your computer and their SIDs.

Security Implications of SID Retrieval

  • An attacker could use a SID to get into files and folders they shouldn’t be able to. If an attacker knows the SID of a user or group, they can use that SID to give themselves permissions to files and folders they wouldn’t normally have access to.
  • An attacker could pretend to be a user or group by using a SID. If an attacker knows the SID of a user or group, they can pretend to be that user or group by using that SID. This could make it possible for the attacker to do things they wouldn’t normally be able to do.
  • A SID could be used by an attacker to turn off security features. If an attacker knows the SID of a user or group, they may be able to turn off security features for that user or group. This could make the system easier to break into.


What is the SID of a Windows system user?

Each account has a unique SID that is given by an authority, like a Windows domain controller, and stored in a security database. When a user logs in, the system gets that user’s SID from the database and puts it in the user’s access token.

What is the user SID attribute?

The SID is a unique value used to identify the user as a security principal. This value is set by the system. This value is set by the system when the account is created.

Can you change computer SID?

To change a SID, you must use the Windows utility Sysprep (System Preparation Tool). This is the only method that is supported by Microsoft. For more information on using Sysprep, see this Microsoft article: How to Use Sysprep: An Introduction. Note: Microsoft does not support using NewSID to change a SID.

Michael Smith
Michael Smith
Michael Smith, a tech-savvy content editor at Bollyinside. With a knack for simplifying complex tech concepts, Michael specializes in crafting user-friendly "How-to" articles and valuable tips. His focus spans Windows, Mac, hardware, and support. Beyond work, he's an avid explorer of diverse tech fields, constantly staying ahead of the curve.


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