Press the Windows Key + I to open the Settings app. Navigate to Apps > Optional features .
Below is the guide for the most common request: so you can use "Active Directory Users and Computers" on Windows 11. how install active directory on windows 11
If you are a developer and need a local directory service instance on Windows 11 (without needing a full Windows Server), you can install AD LDS. Press the Windows Key + I to open the Settings app