Thanks Spapakons, I already did that and it replaced the font, but when opening Word or Corel it was still coming up as the grafitti font....but having had another go I have solved it....I had a...

I have just upgraded to windows 10 (from 7), everything seemed ok at first, until I started to read my incoming mail messages...the font is some weird grafitti type font that is totally unreadable. I...