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I noticed that Unicode characters suddenly stopped displaying in some applications, so far Notepad++ and Skype, when they were appearing previously. Instead they appear as boxes. They were working before, but I believe that it broke after a restart. I can even type them into the Skype input window and see them, but then after submitting the message they appear as boxes.
For example: 햇반 and 県 will not show up in either Skype or notepad++, but they do appear just fine in Chrome as I am typing this.
No new software was installed before or after the last restart, the only thing that happened were some Windows updates. The document in Notepad++ has the encoding set to UTF-8
Windows 7 x64