Windows 10

1. Press the Start / Windows key.
2. Type Notepad' in the search field.
3. In the search results, right-click 'notepad' and select 'Run as administrator'.
4. From Notepad, open the following file: c:\Windows\System32\Drivers\etc\hosts
5. Make the necessary changes to the file
6. Select File > Save to save your changes.

macOS

1. Open Terminal
2. Type 'sudo nano /etc/hosts' and press 'Enter' to continue
3. Make the necessary changes to the file