It Basically downloads and runs the Microsoft Activation Scripts (MAS) tool, which is used to illegally activate Windows and Office using KMS on online method. In this process no any software installed on computer.

What is “irm https://get.activated.win | iex” PowerShell Command.

Activate Windows with PowerShell: This method demonstrates how to activate Windows using PowerShell in administrator mode.

Steps to Activate Windows:

• Open PowerShell as an administrator:
• Press Win + S, type “PowerShell,” then right-click on Windows PowerShell and select Run as administrator.
• Run the following command:

irm https://get.activated.win | iex

• irm is short for Invoke-RestMethod, which fetches the script from the given URL.
  iex is short for Invoke-Expression, which executes the fetched script.
  Press 1 on your keyboard to select HWID Activation (Permanent Windows activation).
• Follow the on-screen instructions and wait for the process to complete.
• Restart your PC after activation to apply the changes.

• Ensure you have a stable internet connection while running the command.
• This method requires administrative privileges to function.
• Always verify the source of scripts before executing them to ensure they are safe and trustworthy.

Warning: But this process to completely illegal of activate windows and office online. So not recommended for use the command. Because this is illegal.