As of October 14, 2025, Windows 10 is no longer supported by Microsoft. In practical terms, your SME will no longer receive security updates on these machines, making them increasingly vulnerable. Migrating to Windows 11 is therefore no longer a distant option: it's a security priority for 2026. Here's what this entails and how to proceed.
Quick answer: Windows 10 is no longer supported as of October 14, 2025 : no more free security updates for the system. To remain protected, your SME must plan the migration to Windows 11 on compatible workstations (TPM 2.0 required) and replace or temporarily extend (ESU program) those that are not.
What the end of Windows 10 means
On October 14, 2025, Microsoft ceased providing security updates, patches, and technical support for Windows 10. Computers still running this system continue to function, but any new vulnerabilities discovered will no longer be patched. For a business, this leaves it vulnerable to ransomware and data breaches.
Note: Microsoft 365 apps will continue to receive security updates on Windows 10 until October 2028, but this does not protect the operating system itself. Migrating to Windows 11 remains the best solution.
The temporary solution: the ESU program
For systems that cannot migrate immediately, Microsoft offers an Extended Security Updates (ESU) program that provides extended protection. For Windows 10, enrollment is open until October 13, 2026. It's a useful safety net, but a temporary extension, not a permanent solution.
Is your hardware compatible with Windows 11?
Windows 11 has stricter requirements than Windows 10. Here are the minimum requirements to check on each machine:
- Processor: 1 GHz or higher, minimum 2 cores, 64-bit compatible
- Memory: 4 GB or more
- Storage: 64 GB or more
- Security: UEFI with Secure Boot and TPM 2.0 chip
- Display: High-definition screen (720p), 9 inches or larger
It's often the TPM 2.0 chip and Secure Boot that cause older computers to fail. A quick audit will determine which ones are compatible and which ones need to be replaced.
How to successfully migrate to Windows 11
A successful migration requires planning to avoid disruptions. Here are the steps we follow with our clients.
- Inventory: list all items and verify their compatibility.
- Backup: protect your data before any upgrade.
- Batch plan: migrate in groups to avoid ever paralyzing the business.
- Deployment: upgrading compatible workstations, replacing others.
- Validation: testing business applications and training employees.
Why act now?
The longer you wait, the greater the risk: an unpatched system is an easy target, and cybersecurity insurers are increasingly demanding up-to-date systems. For Quebec SMEs, planning the migration now avoids rushing and unpleasant surprises. It's also an opportunity to modernize their IT infrastructure and improve performance.
Frequently Asked Questions
Will my Windows 10 computer stop working?
No, it will still start up. But without security updates, it gradually becomes vulnerable. The risk increases over time, especially in a business environment.
Is the upgrade to Windows 11 free?
For compatible computers with a valid Windows 10 license, upgrading to Windows 11 is generally free. However, incompatible computers will need to be replaced.
How long does a company migration take?
It depends on the number of workstations and their compatibility. A well-planned, batch migration takes place without major operational disruptions.
Plan your migration with complete peace of mind
Do you want to assess your IT infrastructure and organize a migration to Windows 11 for your Quebec SME? Contact OKTO Solutions for a free audit, or explore our services.