How to install Group Policy Management in Windows 10/11

First, press the Windows and S keys at the same time to open up the search tool.
Type optional features in the search text box.
Click Manage optional features to open the window that you can see below:
Press the Add feature button there to open a search box.
Input RSAT: Group Policy Management Tools within the search box to find that utility.
Click the Install button.

Open the Remote Server Administration Tools for Windows 10 webpage in your browser.
Click the Download button on that page
Select an x64 (64-bit) or x86 (32-bit) download MSU download package for your Windows 10 version.
Then click Next to download the package.
Thereafter, open File Explorer’s window by pressing the folder icon on the taskbar for it.
Open the folder you saved the Group Policy Management Console package in.
Click the setup package you downloaded to install Group Policy Management Console.
Press the Start button. Select the Power and Restart options on the menu.
Thereafter, right-click Start and select Run.
To open Programs and Features, type the following text in Run and click OK: appwiz.cpl
Then select Turn Windows features on or off.
Extend the Remote Server Administration Tools and Feature Administration Tools checkboxes.
Select the Group Policy Management Tools checkbox if it’s not selected.
Press the OK button to enable the Group Policy Management Console feature.

Open the search box with its hotkey.
Type in PowerShell to find that tool.
Then click Windows PowerShell to open it.
Enter this command in PowerShell:
DISM.exe /Online /add-capability /CapabilityName:Rsat.GroupPolicy.Management.Tools~~~~0.0.1.0
Press the Enter key to run the command.

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