What is NewSID?
NewSID is a program we developed to change a computer’s SID. It first generates a random SID for the computer, and proceeds to update instances of the existing computer SID it finds in the Registry and in file security descriptors, replacing occurrences with the new SID.
Do computers have SIDs?
A machine SID is a unique identifier generated by Windows Setup that Windows uses as the basis for the SIDs for administrator-defined local accounts and groups. After a user logs on to a system, they are represented by their account and group SIDs with respect to object authorization (permissions checks).
How do I create a new SID in Windows 10?
- Open Windows Explorer > Go to C:\Windows\System32\Sysprep, run the sysprep.exe.
- Tick the checkbox Generalize, then click OK to proceed with the change.
- Sysprep is working, It will require a machine restart to re-settings.
- Restart your machine, re-settings as Windows recommend.
How do I get a new SID?
In Active Directory you will need to delete the computer object of your problem server and then rejoin it to the Domain. This will get you a new SID for the server.
Is sysprep really necessary?
Sysprep isn’t necessary, as long as you change the SID and computer name. It’s also a good idea if the hardware you’re deploying to is the same or similar. There are tools that you can use to change the SID so you don’t need to run sysprep.
Does sysprep generate a new SID?
The System Preparation tool (Sysprep) is a utility used for deployment purposes, but can be used to generate a new system SID with little to no loss of Windows data or settings.
What is Server SID?
A security identifier (SID) is used to uniquely identify a security principal or security group. Each account or group, or process running in the security context of the account, has a unique SID that is issued by an authority, such as a Windows domain controller. It is stored in a security database.
How do I find my SID?
How to Find a User’s SID With WMIC
- Open Windows Terminal (Windows 11), or open Command Prompt in older versions of Windows.
- Type the following command into Command Prompt exactly as it’s shown here, including spaces or lack thereof: wmic useraccount get name,sid.
- You should see a table displayed in Command Prompt.
Can I change my 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.
What is the use of Sysprep?
Sysprep is the Microsoft system preparation tool used by system administrators often during the automated deployment of Windows Server based operating systems. Sysprep is most frequently used in virtualized environments to prepare a system image which will be cloned multiple times.
What happens if I dont Sysprep?
If you don’t Sysprep you will end up with machines with the same SID, which is what Windows really uses to identify a machine, not the “pretty” name, DNS name or IP address.
What is NewSID and how does it work?
NewSID is a program we developed to change a computer’s SID. It first generates a random SID for the computer, and proceeds to update instances of the existing computer SID it finds in the Registry and in file security descriptors, replacing occurrences with the new SID. NewSID requires administrative privileges to run.
Can I use NewSID for deployment cloning?
Microsoft has not tested NewSID for all deployment cloning options. For more information on Microsoft’s official policy, please see the following Knowledge Base article: Many organizations use disk image cloning to perform mass rollouts of Windows.
How do I change the name of my computer using NewSID?
It has two functions: changing the SID, and changing the computer name. To use NewSID’s auto-run option, specify “/a” on the command line. You can also direct it to automatically change the computer’s name by including the new name after the “/a” switch.
Are duduplicate SIDS an issue in a workgroup environment?
Duplicate SIDs aren’t an issue in a Domain-based environment since domain accounts have SID’s based on the Domain SID. But, according to Microsoft Knowledge Base article Q162001, “Do Not Disk Duplicate Installed Versions of Windows NT”, in a Workgroup environment security is based on local account SIDs.