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Microsoft Windows Product Key

Published on Sep 2, 2026

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A regular expression to match a Microsoft Product Key, which is a 25-character code that is used to activate Windows.

Matched expressions

Regex expressions	Description	Score
`\b([a-zA-Z1-9]{5}-){4}[a-zA-Z1-9]{5}\b`	Matches a 25-character alphanumeric string of the format CCCCC-CCCCC-CCCCC-CCCCC-CCCCC.	1

Ignored expressions

None

Validator

No validation

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