It is highly recommended to have Windows 7 Service Pack 1 (SP1) installed.
Before starting the download, ensure your system meets these requirements: It is highly recommended to have Windows 7
RSAT only works on Windows 7 Professional, Enterprise, or Ultimate editions. It cannot be installed on Home or Standard editions. To install Active Directory Users and Computers (ADUC)
To install Active Directory Users and Computers (ADUC) on Windows 7 32-bit, you must download and install the package. This tool allows IT administrators to manage Active Directory domains remotely from a client workstation rather than logging directly into a server. Prerequisites for Installation How to Download and Install ADUC for Windows 7 (32-bit) 1
Since you are using a 32-bit system, you must specifically download the x86 version of the installer. How to Download and Install ADUC for Windows 7 (32-bit) 1. Download the Installer How to install Active Directory on Windows 7 & Windows 10