Solved All arror/ navigation button become box on my win 8.1

Greetings all, new member here
need help, i got a problem on my window 8.1
after i update my win 8, i got all navigation, login, and search button become boxes. i already try uninstall the update, but still not fixed. anyone can help me?

here the pic :

Symbol Font is missing in your PC. Download the attachement, extract it and right click on the file and select install.

There seems to be quite a few of these type posts recently.. anyone know what is happening?

Worked, all button back to normally
thx for help top