Windows 10 reached the end of support on 14 October 2025. That means Microsoft no longer provides regular security updates, feature updates or technical support for it. PCs still run, but over time they become a bigger security and compliance risk. This guide gives small businesses a practical plan.
What end of support actually means
- No routine security patches for newly discovered vulnerabilities.
- No technical support from Microsoft for normal Windows 10 issues.
- Software vendors may gradually stop supporting Windows 10 too.
- Insurers and customers may expect supported systems, especially if you handle personal or payment data.
Microsoft offered a paid Extended Security Updates (ESU) programme for a limited period, and business customers can buy it for up to three years. Terms and prices change, so check Microsoft’s current conditions before relying on it.
A step-by-step plan
- List every device. Include laptops, desktops, and any older PC running a single task such as a till or a CCTV recorder.
- Check which can run Windows 11. See our guide to checking if your PC can run Windows 11.
- Back up first. Follow the 3-2-1 backup rule before any upgrade.
- Upgrade eligible PCs. An in-place upgrade normally keeps your files and apps.
- Replace PCs that cannot upgrade. Plan replacements in order of risk: machines that handle customer data or are online all day come first.
- Protect anything you must keep on Windows 10. Isolate it from the main network, remove internet access where possible, and use only what it needs.
Choosing the right Windows 11 edition
If your PCs hold customer data, Windows 11 Pro adds BitLocker management and remote access features. Home is fine for simple personal use.
Frequently asked questions
Can I keep using Windows 10?
Technically yes, but without security updates the risk grows each month. It is not advisable for PCs that browse the web or handle customer data.
Is it free to upgrade to Windows 11?
For eligible PCs it has been a free upgrade, but check Microsoft’s current terms.
What about old software that only works on Windows 10?
Test it on Windows 11 first. If it fails, look for a supported update or a replacement rather than keeping an unsupported PC online.
Need help auditing and upgrading a fleet of PCs? See our IT setup services.
Disclosure: some links on this site are affiliate links. If you buy through them we may earn a commission at no extra cost to you. This does not change what we recommend. Read our affiliate disclosure.
