KMSPico has been the go-to activation solution for home users for over a decade. Here's what makes it special:
Activate Windows or Office with a single click. No technical skills required - just run and click the red button.
Our downloads are regularly scanned and verified clean. False positives occur because all activators modify system files.
Unlike some tools that require re-activation every 180 days, KMSPico provides permanent activation.
Get the latest version with Windows 11 and Office 2021 support
For most users who want simple, permanent activation
For users who need flexibility
Your antivirus may flag KMSPico during download because it modifies system files during activation - this is normal behavior for activation tools. We verify all downloads are 100% clean with VirusTotal. For activation to succeed, you'll need to temporarily disable your antivirus or add KMSPico to its exclusions list.
Simple 3-step process to activate your software
Get KMSPico ready for activation
Let KMSPico do its magic
Confirm successful activation
If activation fails: (1) Run as administrator again, (2) Completely disable Windows Defender, (3) Ensure you have original (unactivated) Windows/Office installed, (4) Try the portable version, (5) Check for system file corruption with 'sfc /scannow' in Command Prompt (admin).
Every supported Microsoft product with detailed activation information
Other reliable activation tools you might consider
Popular alternative with automatic renewal feature. Supports all Windows and Office versions.
Advanced tool for enterprise environments. Offers both KMS and EI activation methods.
Lightweight version that doesn't require installation. Works from USB drives.
KMSPico has been the #1 choice for Windows activation since 2012. Unlike other activators that stop working after updates, KMSPico provides permanent activation for all Microsoft products including:
Real experiences from our community
"After wasting money on shady key sellers, KMSPico worked perfectly on my Windows 11 laptop. Activated Office 2021 too. The whole process took less than a minute. Just remember to disable antivirus temporarily!"
"I was skeptical at first, but needed Office for my studies. KMSPico portable version worked without admin rights on my university computer. Activated Word and Excel perfectly. Still working after 4 months."
"Used KMSPico for years across multiple PCs. The 2025 version activated Windows 11 Pro without issues. Survived three feature updates so far. Only had to reactivate once after a clean reinstall."
Everything you need to know about KMSPico
Yes, when downloaded from our official site, KMSPico is completely safe. The false positives from antivirus programs occur because KMSPico modifies system files during activation - the same behavior some viruses exhibit, hence the detection. We scan all files with VirusTotal before release.
KMSPico doesn't use product keys. Instead, it emulates Microsoft's enterprise activation servers locally. While retail keys activate directly with Microsoft, KMSPico makes your system think it's activated through a corporate KMS server. The end result is similar - full access to all features without paying for a license.
In our decade of experience, Microsoft doesn't ban personal accounts for activation methods. They primarily target businesses using unlicensed software. However, we always recommend purchasing genuine licenses if you can afford them, especially for business use.
Common causes include: (1) Not running as administrator, (2) Antivirus blocking the process, (3) Corrupted system files, (4) Trying to activate pirated Windows/Office copies. Our troubleshooting guide above covers solutions for all these scenarios.
Yes! KMSPico activations persist through updates. Major version upgrades (like Windows 11 22H2 to 23H2) might require reactivation, but regular monthly updates won't affect your activation status.
No, KMSPico only works on Windows PCs. Android activation tools with similar names are fakes that often contain malware. Only download KMSPico from trusted sources like this website.
Official ways to get Windows and Office
For students and teachers
Pre-installed with new PCs
Get full access to Windows and Office features today
This software is provided for educational purposes only. Microsoft products should be properly licensed in business and commercial environments. We don't encourage software piracy and recommend purchasing genuine licenses when possible. Users are responsible for complying with local laws regarding software licensing.