Windows Live writer does not have permission to set the font 501 Error

When you use the "format"-> "font..." menu to adjust the font, Windows Live writer prompts an error:

 

This dialog box has an error.

Error: 501

No permission

 

An error occurred in this dialogue.

Error 501

Permission denied.

 

Solution --

 

Start the "Internet Options" dialog box from the "Tools" menu of control panel or Internet Explorer, select the "Security" tab, and click the "Custom Level" button, in the "Settings" list in the "Security Settings" dialog box, locate the "cross-origin browser sub-framework" option under the "other" category, and click the "enable" radio button, click "OK" twice to exit.