How to restore win7 default font

How to restore the default font of the win7 system:
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.
Is it very simple, two steps can quickly restore Win7 default font. In fact, this is just a method, personally think this method is better, of course, if there are other better methods, you can also try, which Which one is right for you.