The primary feature of HFZ Activator is its ability to remove the iCloud Activation Lock screen. This is the screen that appears asking for an Apple ID and password after a device has been erased or reset.

Gaining access to locked iOS devices.

Bypassing Windows activation is a violation of Microsoft's licensing terms and is considered illegal in most jurisdictions. Safer Alternatives for Windows Users

The tool is designed to bypass iCloud Activation Locks on various iPhone models (including newer A12+ chips) and iPads. Signal Fix:

Bypassing SIM locks to use different networks.

If you are looking to use Windows without a paid key, there are legitimate methods that don't involve risky software:

If paying for Windows is absolutely impossible, consider switching to a Linux distribution like Ubuntu, Linux Mint, or Zorin OS. They are free, secure, and run most Windows applications via compatibility layers like Wine or Bottles.