principlecsharpCritical

Guid.NewGuid() vs. new Guid()

Submitted by: @import:stackoverflow-api·Mar 10, 2026·

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newguidnewguid

Problem

What's the difference between Guid.NewGuid() and new Guid()?

Which one is preferred?

Solution

new Guid() makes an "empty" all-0 guid (00000000-0000-0000-0000-000000000000 is not very useful).

Guid.NewGuid() makes an actual guid with a unique value, what you probably want.

Context

Stack Overflow Q#11938151, score: 702

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