Windows 10 Evaluation Keys: Microsoft’s Official List

Microsoft’s Generic Evaluation and KMS Client Keys for Windows 10

Microsoft publishes a standard set of generic product keys for each edition of Windows 10 — these are the well-known “KMS client setup keys” used for volume-licensed KMS activation and evaluation scenarios. They’re not secret or leaked keys; Microsoft documents and maintains this exact list openly as part of its volume licensing documentation, and they only work against an organisation’s own properly licensed KMS host — they don’t activate a copy of Windows on their own. Because Microsoft updates and re-publishes this list from time to time as editions change, rather than reproduce a static list here that could go stale or contain a transcription error, the reliable source is Microsoft’s own current KMS client activation keys documentation, searchable directly on Microsoft Learn. That page is kept up to date with the correct key for every current Windows 10 (and Windows 11) edition. If you’re setting up evaluation media instead of a KMS client key, Microsoft’s Evaluation Center provides time-limited evaluation ISOs with their own built-in evaluation keys, which is the more appropriate route if you just want to trial an edition of Windows 10 rather than set up volume activation.

Does KMS Activation Still Work for Windows 10? (Updated for 2026)

Yes — even though Windows 10 itself reached the end of free support on 14 October 2025, KMS client activation is independent of that support lifecycle. Microsoft’s KMS client setup keys documentation remains live and has continued to be updated (last revised in 2025, after Windows 10’s EOL date), and still lists the current Windows 10 client keys alongside Windows 11’s. If your organisation is running Windows 10 under ESU or otherwise, volume-activated machines using these generic keys against your own KMS host will keep activating exactly as before — EOL affects patching and support, not the activation mechanism itself.

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