Win Server 2008 R2 builds a small error solution in the domain environment

Error content: Detecting failure to install Active Directory Domain Services binaries. The error is: The requested operation failed. The system needs to be restarted to roll back the changes. The above error is when you set up the domain environment, “start”——“run”——enter “dcpromo” Encountered a problem: Follow the prompts, "Start”—— After restarting the Windows Server 2008 R2 system, the problem still exists. Solution: "Start”——“Administrative Tools”——Open“Server Manager” or the Server Manager icon on the taskbar, in the Open “Server Manager” At the bottom, there is a prompt “Restart the system”, and the system will automatically restart after clicking. After restarting, execute “Start”——“Run”——Enter“ dcpromo”Steps, Active Directory Domain Services Installation Wizard“Window Display Step 2: Start the remote register service.