Since Microsoft recently announced support for strong certificate mapping for Intune PKCS and SCEP certificates, identifying a user or computer’s security identifier (SID) is critical for troubleshooting. There are a few different ways to retrieve this information. Finding the user’s SID is easy enough (whoami.exe /user). However, finding the computer’s SID is a little more challenging.

PowerShell Script

To simplify the task of retrieving the SID for a user or computer, I’ve created and published a PowerShell script called Get-Sid. Administrators can install this script from the PowerShell gallery using the following command.

Install-Script -Name Get-Sid

Get-SID

After installing the PowerShell script, running it will return the SID of the current logged on user or the machine.

User

To retrieve the user’s SID, run the command without additional parameters.

Get-Sid

Computer

Run the command with the -Machine parameter to retrieve the computer’s SID.

Get-Sid -Machine

Additional Information

Get-Sid in the PowerShell Online Gallery

Get-Sid Repository on GitHub