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Some Unicode glyphs are missing in my Windows 7 system

As the title says, some specific glyphs within certain Unicode blocks are missing in my Windows 7 system. I checked using the Character Map Windows application and they aren’t showing up.

For instance in the Greek and Coptic block these are missing:

U+0370
U+0371
U+0372
U+0373
U+0376
U+0377
U+037F
U+03CF

While the other characters in the block render just fine…

I checked https://www.fileformat.info/info/unicode/char/0370/fontsupport.htm And the fonts that are supposed to render those glyphs are in my system, most are core Windows fonts. They simply just don’t render the glyphs mentioned.

If I check the Unicode Blocks: https://en.wikipedia.org/wiki/Unicode_block

I can see properly displayed all the characters in some blocks, while others have missing characters, the blocks where I’m missing glyphs are:

Greek and Coptic
Cyrillic Supplement
Armenian
Hebrew
Arabic
Arabic Supplement
NKo
Devanagari
Bengali
Gurmukhi
Gujarati
Oriya
Telugu
Kannada
Malayalam
Sinhala
Lao
Tibetan
Georgian
Hangul Jamo
Ethiopic
Cherokee
Runic

These I’m missing ALL the glyphs in the whole block:

Samaritan
Mandaic
Syriac Supplement
Arabic Extended-B
Arabic Extended-A
Myanmar
Tagalog
Hanunoo
Buhid
Tagbanwa
Limbu
Buginese
Tai Tham
Combining Diacritical Marks Extended
Balinese
Sundanese
Batak
Lepcha
Ol Chiki
Cyrillic Extended-C
Georgian Extended
Sundanese Supplement
Vedic Extensions

Is this how it is supposed to be in Windows 7? or is there something wrong with my system?

Any ideas?