Browser/Email :: Symbols Instead Of Greek Text When Typing In A Box IE 11

In my work computer (Windows 10 Pro 64-bit) I noticed a strange phenomenon. When I switch keyboard layout to Greek in order to type Greek in Google or elsewhere, it types strange symbols instead of the actual character! This happens in every website when I try to type data in a box or wherever else. If I write the text in Notepad or elsewhere and I copy-paste, it is OK. The problem is I cannot type directly in Greek. The keyboard produces symbols instead of Greek characters! This problem is only in IE 11, in Google Chrome I can type OK.