Remove AD Connect Tool

The first thing you need to do is remove Azure AD Connect from the server that it is running on. Use the following steps:

1. On the server running Azure AD Connect, navigate to Control Panel.

Click Uninstall a program Uninstall Azure AD Connect from the server

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1. Click Uninstall a program
2. Select Azure AD Connect. 

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1. When prompted, click Yes to confirm.
2. This confirmation will bring up the Azure AD Connect screen. Click Remove. 

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1. Once this action completes, click Exit.
2. ​
3. Back in Control Panel click Refresh and all of the components should have been removed.

• Although it is a supported configuration, it's not always best practice to install AD Connect in a domain controller. Typically, when you install a domain controller, you want to make sure there are no other services that interfere or compete with the compute, memory, networking, or disk resources. Also, should there be an AAD Connect software error, a reboot may be required. Although the network should include multiple DC's for replication and HA purposes, adding AD Connect to a domain controller means adding more resources to a busy and important server.