How to Change Your Computer SID and Name with SIDCHG
If you have cloned a Windows system, you may need to change its computer SID (Security Identifier) and name to avoid conflicts with other systems on the network. A computer SID is a unique identifier that Windows uses to manage access and permissions. Changing the computer SID and name can also help you customize your system and make it more secure.
One way to change your computer SID and name is to use a command-line utility called SIDCHG (SIDCHG64 on 64-bit Windows). This utility can modify the local computer SID and name, as well as other related settings, such as the WSUS ID for Windows Updates, the Device Identifier for modern Windows apps, the MSDTC CID, the Machine GUID, the Machine ID, the Dhcpv6 DUID, the SQL Server Master database, and the encryption state. It can also reset OneDrive if needed.
SIDCHG is a free tool that you can download from Stratesave Systems. There is no installation program. You just need to run it from a command prompt with administrator privileges. You can also use it to change the SID and name of a non-running Windows system on a specified drive.
Before you use SIDCHG, you should be aware of some important points:
This is an advanced tool that makes deep changes to your system. It is not for normal usage. You should only use it if you know what you are doing and have a backup of your system.
Once you start SIDCHG, do not interrupt it in process. Doing so may cause serious problems with your system.
Changing your computer SID and name may affect some applications and services that rely on them. You may need to reconfigure or reinstall them after using SIDCHG.
Changing your computer SID and name may invalidate your system activation. You may need to reactivate your Windows license after using SIDCHG.
If you are ready to use SIDCHG, here are the basic steps:
Download SIDCHG from Stratesave Systems and save it to a folder on your system.
Open a command prompt with administrator privileges and navigate to the folder where you saved SIDCHG.
Type SIDCHG /help to see the usage information and options.
Type SIDCHG /COMPNAME=:NewName where NewName is the new computer name you want to use. You can also use for a random hex character or * for the MAC address (hex) of your network adapter.
If you want to change other settings, such as the computer description, the WSUS ID, or OneDrive, you can add more options to the command line. See the usage information for details.
If you want to change the SID and name of a non-running Windows system on another drive, you can specify the drive letter and the Windows directory with the /D: and /OS: options.
If you are satisfied with your command line, press Enter to start SIDCHG.
Wait for SIDCHG to finish its work. It may take several minutes depending on your system configuration.
When SIDCHG is done, it will display a summary of what it changed and ask you to reboot or shutdown your system. You can also use the /R: or /S: options to automate this step.
After rebooting or starting your system, check if everything is working as expected. You may need to reenter some passwords or reconfigure some applications or services.
Congratulations! You have successfully changed your computer SID and name with SIDCHG. If you encounter any problems or have any questions, you can visit Stratesave Systems for more information and support. 061ffe29dd