Before anything else, run HWIDChanger as administrator. Without admin rights it can read identifiers but can't write. Launch right-click → "Run as administrator," or set the always-elevated flag in the shortcut properties.
Step 1 — make a backup. The very first thing the app shows is a "Save current state" button. Click it. The original profile is now saved to disk; you can restore it any time later.
Step 2 — pick which identifiers to change. The default selection covers the most fingerprinted IDs: SMBIOS UUID, MAC address, volume ID, machine GUID. For a first run, leave the defaults.
Step 3 — click "Apply." The app generates a new identifier set, writes it through the registry and raw disk, and immediately verifies that everything took effect. The whole pass takes 30–60 seconds depending on hardware.
Step 4 — reboot. Some identifiers (volume ID, computer name) are cached by the OS and only "go live" for the next session. After reboot the change is fully visible to all programs.
Step 5 — verify. Open any HWID checker (we recommend our built-in fingerprint utility) and confirm that all the parameters you targeted have actually changed. If anything's off, restore the backup and reach out to support.