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How to Use Sidchg64rar to Change Your Computer SID and Name

Sidchg64rar is a command-line utility that allows you to modify your local computer SID (security identifier) and computer name, for Windows 7/2008/Vista/2003/XP. It can also change other settings related to your computer identity, such as the WSUS ID for Windows Updates, the Device Identifier for Metro apps, and the encryption state to preserve encrypted files and certificates.

In this article, we will show you how to use Sidchg64rar to change your computer SID and name, and explain why you might need to do so.

What is a Computer SID and Why Change It

A computer SID is a unique identifier that Windows uses to identify a computer account or a user account. It is composed of a series of numbers and letters, such as S-1-5-21-1234567890-1234567890-1234567890-1000. The SID is stored in the system registry and is used by Windows to grant or deny access to resources and services.

Normally, you don't need to change your computer SID, as it is automatically generated when you install Windows or join a domain. However, there are some situations where you might want to change it, such as:

You have cloned a computer or a virtual machine and want to avoid SID conflicts on the network.

You have renamed a computer or a user account and want to update the SID accordingly.

You have transferred a hard drive or an operating system from one computer to another and want to reset the SID.

You want to change your computer name or description without reinstalling Windows.

Changing your computer SID can help you avoid potential security issues, network problems, or application errors caused by duplicate or outdated SIDs.

How to Use Sidchg64rar to Change Your Computer SID and Name

Sidchg64rar is a simple and powerful tool that can help you change your computer SID and name in a few steps. Here is how to use it:

Download Sidchg64rar from this link. It is a ZIP file that contains two versions of the utility: Sidchg.exe for 32-bit Windows and Sidchg64.exe for 64-bit Windows.

Extract the ZIP file to a folder of your choice. You can also copy the utility to a USB drive or a CD-ROM if you want to use it on multiple computers.

Open a command prompt as an administrator. To do this, click on the Start button, type cmd in the search box, right-click on Command Prompt and select Run as administrator.

Navigate to the folder where you extracted or copied Sidchg64rar. For example, if you extracted it to C:\Sidchg64rar, type cd C:\Sidchg64rar and press Enter.

Type Sidchg64 / and press Enter to see the usage and options of the utility. You can also type Sidchg64 /help for more detailed information.

Type Sidchg64 /compname=:newname /reboot where newname is the new computer name you want to set. You can also use as a random hex character or * as the MAC address of your network adapter. For example, Sidchg64 /compname=PC /reboot will set your computer name to PC followed by a random hex character. The /reboot option will restart your computer after changing the SID and name.

If you want to change other settings besides the SID and name, you can use additional options such as /compdescr=:newdescription to set a new computer description, /nw to skip changing the WSUS ID, /ndi to skip resetting the Device Identifier, /nmg to skip resetting the Machine GUID, /nsq to skip changing the SQL Server master database, etc. You can see all the available options by typing Sidchg64 / or Sidchg64 /help.

Press Enter to execute the command. You will see a confirmation message asking if you want to proceed. Type Y and press Enter if you are 061ffe29dd


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