How to quickly restore the Win7 default font?

Some people may not be satisfied with the default version of Windows 7's new Yahoo font. Many new fonts have been installed. Some of them may have replaced the default fonts of the system and software with another font.
Some people will worry, if you change the system font, you can't restore it? Don't worry, the method of restoring is very simple.
Quickly restore Win7 default font:
STEP1
Open “Control Panel”, find "Appearance and Personalization", click to enter. In the "Font" menu, find “Change Font Settings”. Click to enter the Font Settings interface of Win7.
STEP2
In the "Font Settings" setting of the interface, there is a button that "restores the default font", left click, and the button is grayed out. At this point all the fonts have been restored to Win7's default new version of Yahei.