I understand what you have advised, in fact I have installed Win8 three or four times with the Myanmar Text already installed in it. However when I install the Zawgyi keyboard admittedly a rouge font, it then overwrites the unicode code points of the original Myanmar Text font. This plays havoc with both fonts. Display and keyboards are effected.
Now due to dual OS install problem with Ubuntu Linux I have to format and re install Win8. I thought that Zawgyi font would go away, but apparently not. When I went back to my log in with my old account, internet came back with my old bookmarks without my installing and the Zawgyi font is back. The language bar is also with my old Burmese, Rakhine and Shan keyboard. The keyboard is not working properly as Zawgyi is still in the background.
I go to Control panel and try to delete Zawgyi in the fonts folder. It can not with the message that zawgyi is in use. I tried to close all internet and other applications. I even tried to find zawgyi in the folders and deleted them. I still can not delete zawgyi font in the fonts folder.
Kindly advise how to uninstall/delete this font. Thank you.