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Windows 10 ESU — Year 1 (2025-2026)
€309.00
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- Platform: PC
- License type: Lifetime
- Key type: ESD/Retail
- Devices: 1
Windows 10 ESU Year 1 — extended security updates for the 2025–2026 period following the end of Windows 10 support.
Windows 10 ESU — Year 1 (2025–2026)
Extended Security Updates for Windows 10 after the end of official support. Critical security patches for 12 months — from October 2025 to October 2026.
What is Windows 10 ESU?
- End of Windows 10 support — on 14 October 2025, Microsoft will end free security updates
- ESU = extended protection — critical and important security patches for an additional 12 months
- For businesses that cannot yet migrate to Windows 11 — essential for hardware and software compatibility
- Per-device license — each Windows 10 PC requires a separate ESU key
Critical security patches
You receive all critical and important security updates released by Microsoft in the monthly Patch Tuesday cycle — exactly as before.
Business continuity
Maintain full protection for your production environment without the need for a sudden migration. Plan your move to Windows 11 at your own pace.
Hardware compatibility
Older hardware that does not meet Windows 11 requirements (TPM 2.0, Secure Boot) can continue to run securely with Windows 10 + ESU.
Regulatory compliance
Many sectors, including finance, healthcare, and public administration, require up-to-date operating systems. ESU helps maintain compliance with NIS2, GDPR, and ISO standards.
Windows Update unchanged
Patches are delivered through the standard Windows Update channel. There is no need to change your IT processes — activate the license key and updates will arrive automatically.
Cheaper than replacing hardware
The cost of ESU is only a fraction of the price of new Windows 11 PCs. It is an ideal transitional solution when a gradual fleet upgrade is planned.
Specification
| License | Windows 10 Extended Security Updates — Year 1 |
| Type | Extended Security Updates (ESU) |
| Validity period | October 2025 — October 2026 (12 months) |
| System | Windows 10 (version 22H2 or later) |
| Requirements | All updates installed up to October 2025 |
| License type | Per device (1 key = 1 PC) |
Frequently Asked Questions
Is ESU mandatory?
No, ESU is optional. However, without it, Windows 10 will no longer receive any security patches after 14 October 2025, leaving the computer exposed to attacks that exploit newly discovered vulnerabilities. For businesses, it is effectively essential.
What happens without ESU after October 2025?
Windows 10 will continue to work, but it will not receive any security patches. New vulnerabilities will remain unpatched, exposing the system over time to increasing risks such as ransomware, exploits, and data breaches.
How do I activate the ESU key?
You can activate the ESU key using the command line (slmgr /ipk) or Group Policy (GPO) in a domain environment. Once activated, security patches will start arriving automatically through Windows Update. We send step-by-step activation instructions with the key.
Is ESU Year 1 required before purchasing Year 2?
Yes. The ESU program is cumulative — Year 2 requires prior purchase and activation of Year 1. Years cannot be skipped. If you are planning longer protection, start with Year 1.
Does ESU include new Windows 10 features?
No. ESU covers critical and important security patches only. New features, performance improvements, and quality updates are not part of the ESU program.
Delivery and activation
Your ESU key is sent instantly by email after payment is confirmed — usually within 5 minutes. You will receive detailed step-by-step activation instructions (slmgr/GPO).
Official Microsoft key
Instant email delivery
24/7 technical support↩️ 14-day money-back guarantee
KS-WIN10-ESU1
Data sheet
- Platform
- PC
- License type
- Lifetime
- Key type
- ESD/Retail
- Devices
- 1
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Windows 10 ESU Year 1 — extended security updates for the 2025–2026 period following the end of Windows 10 support.