Microsoft ended free security updates for Windows 10 on 14 October 2025. If your business still runs Windows 10, you should act now: move eligible PCs to Windows 11, replace devices that can’t upgrade, or use Microsoft’s paid Extended Security Updates as a short bridge while you plan. Carrying on with unsupported Windows 10 leaves you exposed to new security flaws that will never be fixed.
This isn’t only a security issue. It affects your compliance position, your cyber insurance and your access to new tools. Here is what to weigh up.
Why this matters
Once an operating system stops getting security updates, attackers actively target it, because any new flaw stays open forever. Running unsupported software can also breach your UK GDPR duty to keep data secure, fail card-payment requirements, and give a cyber insurer grounds to reduce or refuse a claim. In short, the risk grows every month you wait.
Your options
- Upgrade to Windows 11 on PCs that meet the requirements. This is the best long-term answer and unlocks newer security and productivity features.
- Replace older devices that can’t run Windows 11. Many business PCs from the last few years are eligible, but some will need replacing.
- Use Extended Security Updates (ESU) as a short, paid bridge if you genuinely need more time, while you plan the move. ESU is a stopgap, not a destination.
How to do it smoothly
Start with an audit of every device: which can upgrade, which need replacing, and what software needs checking for compatibility. Then plan the rollout in stages so work isn’t disrupted, with data backed up and settings carried across. Done properly, the move is straightforward and a good moment to standardise your fleet.
A real example: standardised, well-managed devices
We supported a client as they grew from 1 office to 6 and from 20 users to 75 in two years, keeping devices standardised and well managed throughout. A managed approach makes an upgrade like this routine rather than disruptive.
Why businesses choose First Stop IT
First Stop IT has supported businesses since 2002 and is a Microsoft Partner. Our credentials include:
- Cyber Essentials Certified
- IASME Cyber Assurance (Gold)
- NCSC Assured Service Provider (Cyber Advisor for Cyber Essentials)
- Microsoft Partner
- Crown Commercial Service Supplier (G-Cloud)
- Quality Principles Certified
We look after more than 2,000 endpoints across 50 companies, we’ve been named a Top 50 UK MSP for three years running, and we support organisations with 10 to 100 employees across Essex, Hertfordshire and London, including Harlow and Bishop’s Stortford.
Book a free Windows 11 readiness review
Still running Windows 10? Book a free IT and cyber security review with First Stop IT and we’ll audit your devices and plan the safest way forward.