Windows 10 Ends October 2025: The Complete UK Migration Checklist
Windows 10 End of Support: What It Means for UK Users in 2026
Microsoft ended official support for Windows 10 on 14 October 2025. That date has passed. If you are still running Windows 10 in the UK, your PC is now operating without security patches, bug fixes, or technical support from Microsoft. This is not a theoretical risk — it is a real and growing vulnerability. This guide provides the complete migration checklist every UK user needs, whether you are a home user, a small business, or an IT administrator.
What "End of Support" Actually Means
When Microsoft ends support for a Windows version, three things happen:
- No more security updates — newly discovered vulnerabilities will not be patched
- No more bug fixes — existing issues will never be resolved
- No technical support — Microsoft will not help with problems
Your PC does not stop working. Windows 10 will continue to boot, run applications, and connect to the internet. But every day that passes without security patches increases your exposure to malware, ransomware, and data breaches. For UK businesses, this also raises GDPR compliance concerns — the Information Commissioner's Office (ICO) expects organisations to run supported software with current security patches.
The Real Risks of Staying on Windows 10
Since October 2025, security researchers have been disclosing Windows 10 vulnerabilities knowing Microsoft will not patch them. The risks include:
- Ransomware — unpatched systems are prime targets for encryption attacks
- Data breaches — vulnerabilities in networking code can expose sensitive data
- Browser exploits — Edge and Chrome on Windows 10 may not receive full security updates
- Compliance failures — UK businesses running unsupported OS may violate GDPR and Cyber Essentials requirements
- Third-party software drops — application developers stop testing on unsupported Windows versions
Your Migration Options
Option 1: Upgrade to Windows 11 Pro
The recommended path for most UK users. Windows 11 Pro provides:
- Security updates through at least October 2028
- BitLocker encryption for data protection
- Remote Desktop for business use
- Hyper-V for virtualisation
- Windows Sandbox for safe testing
- Group Policy management for business deployments
Option 2: Purchase a New PC with Windows 11 Pre-installed
If your current PC does not meet Windows 11 hardware requirements (TPM 2.0, Secure Boot, 8th Gen+ CPU), buying a new machine is the practical choice. Most new PCs sold in the UK now come with Windows 11 Pro or Home pre-activated.
Option 3: Extended Security Updates (Businesses Only)
Microsoft offers paid Extended Security Updates (ESU) for Windows 10, similar to the programme they ran for Windows 7. This is primarily for enterprise customers who need more time to migrate. The cost increases each year, making it an expensive stopgap rather than a long-term solution.
The Complete UK Migration Checklist
Before You Start
- Back up everything — use an external drive or cloud storage (OneDrive, Google Drive)
- Export browser bookmarks and passwords — do not rely on auto-sync
- Note all installed applications — write down licence keys for non-Microsoft software
- Verify your PC meets Windows 11 requirements — download the PC Health Check app from Microsoft
- Purchase your Windows 11 Pro key — have it ready before you start
During Migration
- Run Windows Update — ensure Windows 10 is fully updated before upgrading
- Disconnect non-essential peripherals — printers, scanners, external drives
- Start the in-place upgrade — insert the Windows 11 installation media or use Windows Update
- Enter your Windows 11 Pro product key — when prompted during installation
- Choose "Keep personal files and apps" — for the smoothest transition
After Migration
- Run Windows Update immediately — install all available updates
- Reinstall peripherals — printers, scanners, and external devices
- Verify application compatibility — open each program and confirm it works
- Enable BitLocker — encrypt your drive for security
- Set up Windows Hello — facial recognition or fingerprint for secure sign-in
- Configure automatic updates — ensure you never fall behind on patches again
Products for UK Users Migrating to Windows 11
Frequently Asked Questions
Is it illegal to continue using Windows 10?
No, it is not illegal. However, for UK businesses, running unsupported software may violate GDPR requirements for appropriate technical measures to protect personal data. The ICO considers using unsupported software a risk factor in data breach investigations.
Can I still get Windows 10 security updates?
Only through the paid Extended Security Updates programme, which is primarily for enterprise customers. Home users and small businesses will not receive free security updates.
What if my PC cannot run Windows 11?
If your PC lacks TPM 2.0 or a supported CPU, your options are: (1) purchase a new PC, (2) install Linux, or (3) pay for Windows 10 ESU. For most UK users, a new PC with Windows 11 Pro is the most practical and secure option.
Will Windows 10 still work for day-to-day tasks?
Yes, Windows 10 will continue to function. But without security patches, each day increases your risk of malware infection, data breach, and software incompatibility. It is not a question of whether you will encounter problems, but when.
How much does a Windows 11 Pro key cost in the UK?
From Softkeys.uk, a genuine Windows 11 Pro key starts at £19.99. This is a one-time purchase with no recurring subscription required.
Do Not Wait — Every Day Increases Your Risk
Windows 10 support has ended. The security landscape is not standing still. UK users who remain on Windows 10 are running a growing risk with every passing week. Whether you upgrade your existing PC or purchase a new one, migrating to Windows 11 should be your top priority. The cost of a Windows 11 Pro key is minimal compared to the cost of a ransomware attack or a data breach investigation by the ICO.
