Free Public KMS Server List (2026)
Public KMS servers act as activation hosts for Volume License clients. KMSAuto.software installs its own local KMS service automatically, but if you prefer pointing slmgr to a public host, the servers below are tested and active as of 2026.
Recommended public KMS hosts
- kms.kmsauto.software:1688 — primary, global anycast.
- kms8.msguides.com:1688 — backup, Europe.
- kms.digiboy.ir:1688 — backup, Asia.
- kms.loli.beer:1688 — community-run.
- All hosts support Windows 10/11/Server 2016+ and Office 2016/2019/2021/2024.
Pointing slmgr to a public KMS server
- Open elevated CMD.
- slmgr /ipk <GVLK key for your edition>
- slmgr /skms kms.kmsauto.software:1688
- slmgr /ato
- slmgr /xpr to verify the 180-day expiration.
Office KMS via ospp.vbs
- cd "\Program Files\Microsoft Office\Office16"
- cscript ospp.vbs /sethst:kms.kmsauto.software
- cscript ospp.vbs /act
- cscript ospp.vbs /dstatus to confirm.
When to prefer a local KMS host
- Public hosts may rate-limit, causing 0xC004F074 errors.
- KMSAuto.software bundles a local KMS service (vlmcsd) for offline use.
- Local mode is faster and cannot be blocked at the network level.
Frequently asked questions
▸Are public KMS servers safe to use?
The hosts listed above only handle the KMS handshake — no executable code is sent. The risk is upstream: a malicious KMS host could log your hardware ID. We recommend using KMSAuto.software's local KMS mode for maximum privacy.
▸Why do I get error 0xC004F074?
The KMS host is unreachable or rate-limiting. Switch to a different host from the list above or use local KMS mode in KMSAuto.software.
▸How long is a KMS activation valid?
180 days. A scheduled task on the client checks in every 7 days; if it can reach the KMS host, the lease resets to 180 days.
▸Do public KMS servers work for Office 365?
No. Office 365 (Microsoft 365 subscription) uses cloud-based licensing, not KMS. Use Ohook for those installs.
▸Can I host my own KMS server?
Yes — vlmcsd is open-source and runs on Linux, Windows, or any router with Entware. KMSAuto.software wraps vlmcsd for one-click local hosting.
▸What if my firewall blocks port 1688?
Use KMSAuto.software's local mode — it binds to 127.0.0.2:1688 on the loopback interface, bypassing all network firewalls.
▸Do public KMS servers log my IP?
Most do not, but it depends on the operator. For zero-log activation, use KMSAuto.software's bundled local KMS service.
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Download Free Public KMS Server List (2026)Archive
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