https://learn.microsoft.com/en-us/answers/questions/2657656/kb3013455-(ms15-010)-causes-font-corruption?forum=windows-windows_7-windows_update&referrer=answers&page=0
KB3013455 (MS15-010) causes font corruption - Microsoft Q&A
February 2015 update KB3013455 causes 'Courier New' font corruption on some Windows systems, I can confirm it for Windows Server 2003 and 2008. You can verify...
causesfontcorruptionmicrosoftq