Setup: The Windows Installer service cannot update the system file C:\WINDOWS\Fonts\tahoma.ttf because the file is protected by Windows. ...
Symptoms
While installing Password Vault, you see the following error message:
The Windows Installer service cannot update the system file
C:/WINDOWS/Fonts/tahoma.ttf because the file is protected by Windows. You may need to update your operating
system for this program to work correctly.
Solution
This error message looks more threatening than it really is. If you click OK the
installation will complete successfully.