Before installing Zawgyi font, ensure your system is ready.
Although rare, font conflicts can happen. Copy the C:\Windows\Fonts folder to a safe location before proceeding.
You need administrator privileges to install fonts on Windows 7. Log in as an admin or have the password ready.
It is important to remember that Zawgyi and Unicode are not compatible. If you type a message in Zawgyi, a user with a Unicode-only setup will see jumbled text.