The most trusted free Windows activator in 2026. Activate Windows 10, Windows 11, and Office permanently — offline, no product key, no Microsoft account.
KMSPico is the most widely-used free Windows activator, trusted by millions of users worldwide. It uses Microsoft's own KMS (Key Management Service) protocol to permanently activate Windows — the same method enterprises use for volume licensing.
Verified Secure
v10.2.0 Official • Size: 8.3 MB
KMSPico_Official_v10.2.0.rar
Official release — clean, verified, and pre-configured for instant activation.
No command-line knowledge required. Launch, click Activate, done. Works on Windows 10 and 11 Home, Pro, Enterprise, and Education.
2
Completely Offline
No internet required. Perfect for VMs, servers, and machines without network access. Never connects to Microsoft servers.
3
Permanent with Auto-Renewal
The built-in KMS service renews activation every 7 days. You never see expiry warnings or need to run it again.
4
Activates Windows AND Office
Single tool covers Windows 10, 11, Server 2019/2022/2025, and Office 2019/2021 — all editions, one download.
What a Windows activator does
A Windows activator switches your system from an unlicensed trial state to fully activated. The clean way to do it is KMS — Microsoft's own volume-activation technology. KMSPico installs the right Generic Volume Licence Key for your edition and activates against a Key Management Service host it runs locally, so no retail key or sign-in is needed and your system files stay untouched.
Works across the board
Windows 10 and 11, every edition, plus Windows Server — and a KMS-eligible copy of Office on the same PC at the same time. Activation renews itself every 180 days.
One click or by hand
Run the activator for a one-click result, or use the built-in slmgr commands to do it manually. For version-specific guides, see Windows 11 and Windows 10.
KMSPico is the most reliable free Windows activator in 2026 — one-click GUI, supports Windows 10/11/Server, activates Office too, and renews automatically.
Yes. KMSPico from WindowsKMS is completely free and activates Windows 10, 11, and Server editions permanently without a product key purchase.
Yes. KMSPico v10.2.0 fully supports Windows 11 including 23H2 and 24H2 builds.