The end of Windows 10: are you ready for October 14, 2025?

October 14, 2025 will mark a major turning point for millions of businesses around the world: Microsoft will end support for Windows 10. After this date, no more security updates will be released. Your system will still work, but it will be left to its own devices.

This may seem trivial at first glance, but the consequences can be serious and even costly for organizations that delay migrating to Windows 11.

What will really happen on October 14?  

On The Day, nothing will "crash" overnight. Your computers will boot up as usual, your software will still work. But behind the scenes, the security doors will start to close:

Vulnerabilities discovered after this date will no longer be patched.
Cybercriminals will have a new playground in which to exploit these loopholes.
The risks of attacks, data theft and business interruptions will gradually increase.
As Hugues Ferron, Director of IT Services at One Sky Solutions, sums up:

"It's like riding in a car without buckling up and locking your doors: you can keep going... but you're exposing yourself unnecessarily."

Why migration is more critical than ever  

In 2025, no company will operate without technology. A workstation downtime, even for a few hours, is far more costly than you might think: lost productivity, project delays, impacted customer service...not to mention the costs associated with a cyber-attack.

What's more, the current context makes the threat more serious:

Attacks are more sophisticated and better organized than ever.
Criminal groups, and even certain states, exploit these loopholes for financial or strategic ends.
Software publishers (antivirus, business solutions, etc.) are gradually ceasing to support out-of-date systems, further amplifying the risk.

4 key steps to prepare your migration to Windows 11  

1. Take stock of your IT assets

Identify the configuration, age and warranty of each workstation. Check hardware compatibility with Windows 11: processor, memory, and especially the presence of a TPM chip (mandatory for new security standards). 

2. Plan the replacement of incompatible positions

Manufacturers only produce a limited number of French keyboards and specific models for the Quebec market. Waiting until the last minute could mean running out of stock.

3. Validate business software compatibility

Most applications already run on Windows 11, but there are some exceptions. You should also be aware that, in a few months' time, some publishers may refuse to support Windows 10.

4. Gradual deployment and user training

Run pilot tests in key departments, help people get to grips with the system and adapt configurations if necessary. The Windows 11 interface is more modern, but takes some getting used to.

Why act now (and not in 2026)?  

Pressure on stocks : the whole planet has the same deadline, which risks exhausting inventories of compatible equipment.
Increasing risk after the date : the more time passes, the more loopholes are exploited.
Opportunity for improvement : Windows 11 offers improved integration with Microsoft 365, optimized performance and enhanced "out of the box" protection.
Clearly, preparing for migration means investing in your business continuity and security. As Martin Girard, president of One Sky Solutions, points out, "The further we go after October 14, the more we put ourselves at risk... and that's something you don't want to experience."

How One Sky Solutions can help you  

Our team supports Quebec SMEs at every stage of the transition:

1. Complete audit of your IT assets
2. Replacement and update plan
3. Planned deployment to minimize downtime
4. User training and support

October 14, 2025 is a fixed date: you can't put it off, but you can be ready.
Contact us today to plan your migration and avoid driving "unbelted" in an increasingly dangerous digital environment.

Talk to a One Sky expert

Contact us now and secure the future of your operations.