Hello,
Thank you for posting in Q&A forum.
The Active Directory tools such as "Active Directory Users and Computers" are designed to manage Active Directory Domain Services. They require a connection to an Active Directory domain to function properly. Even after installing the RSAT tools, these tools are only useful if your computer is connected to an Active Directory domain, as they are designed to interact with AD DS. They will not manage local users/groups, etc.
In short, if you are not part of a domain, then the Active Directory tools are of little use to you. For local management, "Computer Management" or "Local Users and Groups" in Windows is more appropriate. To access it, do the following:
Press Win + X and select Computer Management.
Alternatively, you can press Win + R, type 'lusrmgr.msc', and press Enter to open Local Users and Groups directly.
If you need to create or manage Active Directory domains, you need to configure your Windows Server computer as a domain controller.
I hope the information above is helpful.
Best Regards,
Yanhong Liu
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