Quick Answer
Microsoft ended official support for Windows 10 on October 14, 2025. Your existing Windows 10 license and product key still work — the operating system keeps running and your license doesn’t expire or get revoked. What stops is Microsoft’s free security updates, feature updates, and technical support. Devices that meet the hardware requirements can upgrade to Windows 11 using the same or a new license; devices that don’t qualify can continue on Windows 10 at increasing security risk, or move to Windows 11 hardware.
What Actually Changed on October 14, 2025
End of support does not mean Windows 10 stopped working. It means Microsoft stopped providing, for most consumer editions, free security patches, feature updates, and free technical support. Your PC continues to boot, run, and use your existing license exactly as before. The risk is cumulative over time: as new vulnerabilities are discovered, an unpatched Windows 10 machine becomes a growing security liability.
What Happens to Your Existing License
A Windows 10 product key you already own does not get revoked or expire because of the end-of-support date. Licensing and support are separate: your activation stays valid, while the end-of-support date only affects whether Microsoft keeps patching the software. If your hardware meets Windows 11’s requirements (TPM 2.0, compatible CPU, Secure Boot), many Windows 10 licenses qualify for a free upgrade path to Windows 11 — check eligibility in Windows Update.
Your Options Going Forward
- Upgrade eligible hardware to Windows 11 — the recommended path for most users
- Enroll in Extended Security Updates (ESU) if you must stay on Windows 10 temporarily — a Microsoft program with its own eligibility and cost
- Continue on Windows 10 unsupported — technically possible, but increasing security risk over time
- Replace hardware if your current device can’t meet Windows 11’s requirements
Frequently Asked Questions
Does my Windows 10 product key stop working after end of support?
No. The key remains valid for activation. End of support affects Microsoft’s security and feature updates, not license validity.
Can I still buy Windows 10 licenses after end of support?
Windows 10 keys may still be available and are legally usable, but Microsoft recommends moving to Windows 11 for continued security support.
Is it safe to keep using Windows 10?
It continues to function, but without security patches, newly discovered vulnerabilities won’t be fixed, and risk increases over time.
Conclusion
Windows 10’s end of support on October 14, 2025 changed what Microsoft supports — not whether your license or your PC still works. Evaluate your hardware’s Windows 11 eligibility and plan your upgrade path. Browse Windows 11 license keys or Windows 10 license keys at SoftLicenseDeals.
