Windows 10 Support Ends October 14, 2025 – Prepare Upgrade

📌 I. Preamble

On October 14, 2025, Windows 10 reaches end of support. According to CERT-FR, 82% of workstations in French public organizations still use it, and StatCounter reports that 56% of PCs in France remain on Windows 10 despite the global rise of Windows 11. SMEs, remote workers, individuals, and families must imperatively anticipate this deadline to ensure the security of their data.

82%

French public organizations

56%

French PCs on Windows 10

Days remaining

🔍 II. What you will find in this guide

📅

The crucial date

Why October 14, 2025 is a point of no return

🚨

Concrete risks

Explanation of threats (ransomware, data loss)

🧰

Diagnostic

Check your PC compatibility in 2 minutes

📋

3 exit strategies

Detailed comparison (Migration, ESU, Linux)

🛠️

Step-by-step action plan

For individuals and SMEs to migrate smoothly

💡 In a hurry?

Go directly to our action plan for individuals or the one for SMEs.

🌐 III. Introduction: Microsoft OS lifecycle

Microsoft organizes its OS lifecycle in three phases:

🟢

Mainstream support

Features and fixes

🟡

Extended support

Security fixes only

🔴

End of support

No more security updates

Windows 10, launched in July 2015, reaches end of support on October 14, 2025, depriving every PC of corrective, security, and hardware updates.

📜 IV. History: The legacy of Windows 10 (2015-2025)

🚀 July 2015

Free launch for Windows 7/8.1

Over 1 billion installations

🏷️ Editions

Home, Pro, Enterprise, Education

Different target audiences

🔄 Major updates

Anniversary, Creators, 20H2→21H2, 22H2

22H2: Last version

⚠️ V. End of support: Strategic consequences

📅

Deadline

October 14, 2025: end of security updates

💰

ESU

Paid Extended Security Updates until October 13, 2026

🔓

Consequences

Increased exposure to cyber threats, compatibility degradation

📊 VI. Strategic impacts

Stake	Detail	Consequence
🔒 Security & privacy	+340% attacks on outdated systems in 2024 (CERT-FR)	Ransomware and data theft
🖥️ Software compatibility	Microsoft 365: end of features in August 2026	End of security patches in Oct. 2028
💸 Hidden costs	Productivity losses, GDPR non-compliance	Recovery fees (1,000-2,000 €)

📋 VII. Current situation: Adopt a Responsible and Smart Strategy

Are you considering: (backups, scheduling, audit, alternatives, budget...)

We have a complete guide to assist you: Windows 11 Migration Guide: Before October 2025

💾 Backups and validation

Protect your data before any migration

Click to learn more

Backup methods and data integrity validation for a secure transition

See the guide

📅 Schedule

Plan your migration step by step

Click to learn more

Establish a realistic schedule for your migration to a new environment

See the guide

🔍 Preliminary assessment

Analyze your existing infrastructure

Click to learn more

Assess your digital maturity and identify critical points to migrate

See the guide

🔄 Migration plan

Define your transition strategy

Click to learn more

Develop a detailed plan for an organized and uninterrupted migration

See the guide

🖥️ Alternatives

Explore the options available to you

Click to learn more

Discover alternatives to Windows 10 and their specific advantages

See the guide

🔒 Security & compatibility

Ensure the continuity of your protection

Click to learn more

Guarantee the security and compatibility of your applications after migration

See the guide

💰 Budget

Evaluate the costs of your migration

Click to learn more

Estimate the necessary investments for a successful and economical transition

See the guide

🏢 VIII. Strategic advice for SMEs and remote workers

🔍

1. Audit your fleet

Inventory of workstations and critical applications (office software, VPN, ERP)

🎯

2. Prioritize your criteria

Security (sensitive data), budget and compatibility

🔄

3. Choose the right strategy

Migration to Windows 11, ESU or alternative OS according to needs and deadlines

📅

4. Plan and pilot

Pilot deployment, user training, internal support

🏠

5. Specific remote work

Check VPN and remote access compatibility before migration

👨‍👩‍👧‍👦 IX. Practical advice for individuals and families

List your PCs

Desktops, laptops, hybrids: identify those for leisure and remote work

Backup your data

External drive + cloud (OneDrive, Google Drive)

Test compatibility

PC Health Check tool for Windows 11

Plan the migration

Off-peak periods (weekends, holidays)

Inform and involve

Explain the dates and changes to family members

Have a fallback plan

Keep a disk image of Windows 10 for a few days

📋 X. Comparative analysis of strategies

| Option                          | Advantages                                                 | Disadvantages                                    | Ideal Profile                              |
|---------------------------------|-----------------------------------------------------------|-------------------------------------------------|--------------------------------------------|
| **Windows 11 Migration**        | TPM 2.0, Smart App Control, support until 2030, 99.7% apps | Hardware requirements, cost of new hardware     | Recent PCs, gamers, creators              |
| **ESU Extension**               | Temporary security, controlled budget                    | Cumulative cost, no new features                | Short deadlines, urgent preparation needs |
| **OS Change**                   | Free Linux, integrated macOS, lightweight Chrome OS Flex | Linux: learning; macOS: cost; Chrome OS: cloud  | Tech-savvy, cloud uses, lightweight hardware |