Font Won't Install

[ミறѳѳղղįզվદ彡]

Thanks Monica that did the trick had to run the repair tool and now the button to install font is back.

i am very glad this helped to you
and this problem can be caused with using custom icon pack
some of the bad ported icon packs from the other authors can locking some of the system apps as windows security , volume , fonts , device manager .etc
if you have some problems with running any of your apps first just try to uninstall your custom icon pack
and the best choice is sfc /scannow because this change all corrupted files back to windows default
but remember after using sfc /scannow you neet to install UltraUXTheme patcher back if you need to run custom themes
because sfc /scannow change all of this patched themeui.dll and uxinit.dll files back to windows default