End of life for Windows 10: Prepare for the upgrade now

Everything you need to know about Windows 10 support ending and how to protect your business systems.

Are you still relying on Windows 10 as your operating system? With the official end of support date rapidly approaching, you need to understand what’s at stake. 

On October 14, 2025, Microsoft will cease support for all editions of Windows 10, including Windows 10 Enterprise. This means that any device with a version of Windows 10 installed will no longer receive essential security updates or technical support from Microsoft. 

This is a significant shift for any organisation still using Windows 10. The deadline is approaching fast, so it is important to act now. 

Read on to find out how to prepare for this transition.

Why is support ending for Windows 10?

Microsoft typically supports its operating systems for a decade after release. As Windows 10 was released in 2015, ending support is simply a standard phase in line with Microsoft’s product lifecycle policy. 

What 'end of life' means for organisations and IT

The term ‘end of life’ means a full stop on technical support, security patches, and compliance updates for the operating system. For organisations and IT teams, this triggers several challenges:

No technical support: Microsoft will not assist with troubleshooting or system errors.

Security risks: Without security patches, vulnerabilities go unaddressed, increasing risk of cyberattacks.

Compliance issues: Failing to meet regulatory standards, resulting in non-compliance.

Risks of using Windows 10 after support ends

Overlooking the Windows 10 end-of-support deadline could put your business at serious risk. 

Security vulnerabilities and data breaches

Hackers often target outdated platforms, knowing they no longer receive monthly security updates. Without new security patches, malware and ransomware attacks can bypass defences, potentially causing significant disruption.

• Attackers can exploit weaknesses left unpatched, increasing the risk of data breaches.
• Malware infections may result in the loss or theft of sensitive business information.

Compliance, legal, and operational challenges

Beyond security concerns, using Windows 10 post-support creates compliance and operational hurdles. Regulatory standards such as GDPR or the Australian Privacy Principles require regular security updates to meet compliance obligations. Plus, many cyber insurance policies require that systems be kept up-to-date and patched regularly.

If you continue with an unsupported OS, your business may face:

• Legal penalties due to non-compliance with industry standards.
• Difficulty maintaining operational continuity.
• Increased support costs and operational inefficiencies.

Installed software and business applications may become incompatible as vendors stop developing for outdated versions of Windows. This can lead to critical business functions failing or incurring additional licensing costs to remain operational. 

RSM can help you manage this transition

If your organisation has devices that are still on Windows 10, you must act now. RSM offers Managed IT services that can help you navigate your options. 

Upgrade pathways: Your organisation has options

Your organisation has several options: 

• Upgrade existing hardware to Windows 11.
• Invest in new devices.
• Secure an Extended Support Licence.

If you're considering an upgrade to Windows 11 or need to secure an Extended Support Licence to continue using Windows 10 safely, RSM can tailor a plan based on your organisation’s size, industry, and existing infrastructure.

Assessing your current IT environment

The first step of any transition is to understand your needs. For example, some companies may be able to install Windows 11 on their existing devices, while others will require a hardware upgrade. This step helps you create a realistic upgrade plan and reduces the risk of unexpected disruption. 

Auditing devices for Windows 11 compatibility

We will start by auditing every device to identify which ones are running Windows 10, and identifying which devices can be upgraded to Windows 11. 

Identifying upgrade-ready devices ensures a smoother transition and allows you to plan hardware investments where necessary.

What alternatives are available if migration to Windows 11 is not possible?

Not all systems will meet the hardware requirements for Windows 11. If your current PC can’t be upgraded:

• Purchase new devices equipped with Windows 11 to ensure ongoing security and compliance.
• Explore Extended Security Updates (ESU) for a short-term extension of support (up to three years via subscription).

Microsoft’s LTSC (Long-Term Servicing Channel) can offer extended support for specialist use cases, but this comes with specific requirements and costs. Evaluating the total cost of ownership and operational needs will help you make the best decision if upgrading hardware isn’t feasible.

Evaluating installed software and business applications

Assessing application compatibility is as crucial as hardware readiness. Many business apps are designed for specific versions of Windows, and some may not function correctly or at all after migration. As support for Windows 10 ends:

• Vendors may stop providing updates for software on outdated operating systems.
• Functionality may degrade if apps rely on features deprecated in newer Windows versions.
• Critical business applications could encounter stability or compatibility issues.

We will create an inventory of all installed applications and cross-check with vendor documentation for Windows 11 support. Proactive evaluation minimises the risk of workflow interruptions and ensures a seamless user experience when your team migrates to the new environment.

Preparing your transition from Windows 10 to Windows 11

Migrating from Windows 10 to Windows 11 can be straightforward with the right preparation. Microsoft offers a free upgrade for eligible devices, and the process is designed to minimise downtime. 

Organisations should plan the migration carefully to avoid business disruption and data loss. Our managed IT services can offer expert guidance and support throughout this process. 

Backing up data and minimising business disruption

Protecting business data should be central to any upgrade strategy. We will:

• Schedule backups prior to the upgrade to prevent accidental data loss.
• Test restore procedures to verify backup integrity.
• Use modern backup tools integrated with Windows or your chosen platform.

Backing up minimises the risk of data loss if something goes wrong during the transition. We will plan your upgrade for times of low activity and inform staff of any scheduled downtime. By carefully managing the process, you can significantly reduce business disruption and provide peace of mind for all stakeholders.

Frequently Asked Questions

Can I still receive security updates after the Windows 10 end of life?

After 14 October 2025, Microsoft will stop providing free security updates for Windows 10. However, organisations and individuals can subscribe to Extended Security Updates (ESU) for up to three years for a fee. These updates offer critical patches but no new features or technical support.

How do I check if my device can be upgraded to Windows 11?

To check compatibility, use Microsoft’s PC Health Check app or visit Settings > Update & Security > Windows Update on your device. Compatibility depends on the processor (CPU), Trusted Platform Module (TPM) version, and other hardware requirements. 

If your PC can’t run Windows 11, consider switching to Linux, Mac, or ChromeOS Flex. For specialist scenarios, Windows 10 LTSC or IoT editions may offer extended support. Assess application compatibility and user needs before choosing an alternative operating system.
 

FOR MORE INFORMATION

To learn more, please contact the technology consulting division at your local RSM office.