Why does Notepad++ display some Unicode characters as square?

Why does Notepad++ display some Unicode characters as square?

MSBTE, JAVA Programming MCQ (Part-1)Подробнее

MSBTE, JAVA Programming MCQ (Part-1)

Notepad uses UnicodeПодробнее

Notepad uses Unicode

Why do some Unicode characters appear as boxes? (2 Solutions!!)Подробнее

Why do some Unicode characters appear as boxes? (2 Solutions!!)

Notepad++ inserting special Unicode characters in UTF-8Подробнее

Notepad++ inserting special Unicode characters in UTF-8

Show Unicode Special Characters in Noteapd++ (Pound Symbol & UTF Characters)Подробнее

Show Unicode Special Characters in Noteapd++ (Pound Symbol & UTF Characters)

How do I display Cyrillic unicode characters in Notepad and Excel on Windows 7?Подробнее

How do I display Cyrillic unicode characters in Notepad and Excel on Windows 7?

Web pages display unicode characters but not Notepad, why?Подробнее

Web pages display unicode characters but not Notepad, why?

ASCII, Unicode, UTF-8: Explained SimplyПодробнее

ASCII, Unicode, UTF-8: Explained Simply

Notepad++ inserting special Unicode characters in UTF-8 (4 Solutions!!)Подробнее

Notepad++ inserting special Unicode characters in UTF-8 (4 Solutions!!)

Can i retrieve unicode text from notepad which is saved as ANSI text fileПодробнее

Can i retrieve unicode text from notepad which is saved as ANSI text file

Unicode, in friendly terms: ASCII, UTF-8, code points, character encodings, and moreПодробнее

Unicode, in friendly terms: ASCII, UTF-8, code points, character encodings, and more

Notepad++ inserting special Unicode characters in UTF-8Подробнее

Notepad++ inserting special Unicode characters in UTF-8

Why I can type ±©♥🔥🂱Ʊ in this titleПодробнее

Why I can type ±©♥🔥🂱Ʊ in this title

Characters, Symbols and the Unicode Miracle - ComputerphileПодробнее

Characters, Symbols and the Unicode Miracle - Computerphile

⍼ - Why Nobody Knows What This One Unicode Character MeansПодробнее

⍼ - Why Nobody Knows What This One Unicode Character Means

How to fix This file contains characters in Unicode format which will be lost-NotepadПодробнее

How to fix This file contains characters in Unicode format which will be lost-Notepad

How to Fix Language Problem of Non Unicode Program in Windows 10Подробнее

How to Fix Language Problem of Non Unicode Program in Windows 10

Windows: Permanent fix for unicode characters not displaying correctly (as boxes)Подробнее

Windows: Permanent fix for unicode characters not displaying correctly (as boxes)

What are UTF-8 and UTF-16? Working with Unicode encodingsПодробнее

What are UTF-8 and UTF-16? Working with Unicode encodings

How to type in a Squared² or Cubed³ symbol in Notepad (Alt 253, Alt 0179)Подробнее

How to type in a Squared² or Cubed³ symbol in Notepad (Alt 253, Alt 0179)

События