Why Your Business Needs an Infrastructure Refresh in 2026–2027

Business technology can continue working long after it stops working well.

An ageing server may still turn on each morning. An old laptop may still open email. A firewall may continue passing traffic even though it no longer receives the latest security improvements.

Because the systems have not failed completely, replacing them can feel unnecessary.

However, ageing infrastructure often creates hidden costs and risks long before the final breakdown. Employees lose time waiting for slow devices, security weaknesses become harder to manage, backups take longer, software compatibility declines and support costs gradually increase.

For many UK organisations, 2026 and 2027 represent an important window for reviewing and refreshing their IT infrastructure.

Windows 10 reached the end of general support on 14 October 2025, meaning businesses still relying on standard Windows 10 installations must now consider migration, replacement or temporary Extended Security Update arrangements. Windows Server 2016 is also due to reach the end of extended support on 12 January 2027. 

An infrastructure refresh gives your business an opportunity to replace outdated technology, improve cybersecurity and build a stronger platform for future growth.

What Is an IT Infrastructure Refresh?

An infrastructure refresh is the planned process of reviewing, upgrading or replacing the technology that supports your business.

It may include:

• Desktop computers
• Laptops
• Physical servers
• Virtual servers
• Firewalls
• Network switches
• Wireless access points
• Backup equipment
• Storage systems
• Operating systems
• Business applications
• Cloud services
• Telephone systems
• Cybersecurity tools

A refresh does not necessarily mean replacing everything at once.

The aim is to understand which parts of your environment remain suitable, which are approaching the end of their useful life and which are already creating unacceptable business risk.

The result may be a phased programme involving new devices, cloud migration, server upgrades, stronger security and improved backup and recovery arrangements.

Why 2026–2027 Is an Important Time to Act

Many businesses delayed infrastructure projects during periods of economic uncertainty, remote-working disruption and rapid changes in cloud technology.

As a result, some organisations are now relying on equipment purchased several years ago and systems that were designed for a very different way of working.

At the same time:

• Windows 10 support has ended for standard installations
• Windows Server 2016 support ends in January 2027
• Cybersecurity requirements are becoming more demanding
• Cloud applications require stronger connectivity
• Hybrid working has increased device-management needs
• AI tools are changing hardware and data requirements
• Customers and insurers increasingly ask about technology controls

The National Cyber Security Centre warns that weaknesses discovered in unsupported products may remain unpatched and become exploitable, even by relatively low-skilled attackers. 

Waiting until hardware fails or software support ends can force your business into rushed purchasing decisions. Planning during 2026 gives you more time to assess options, budget properly and complete work with less disruption.

1. Outdated Systems Create Cybersecurity Risks

Security is one of the strongest reasons to refresh ageing infrastructure.

Older devices and applications may:

• No longer receive security updates
• Be incompatible with modern protection tools
• Use outdated encryption
• Depend on weak authentication
• Lack secure boot capabilities
• Have unsupported firmware
• Be difficult to monitor centrally

Cybercriminals regularly target known vulnerabilities because the technical details and attack methods may already be publicly available.

The NCSC recommends keeping devices and software updated so that security patches can close known weaknesses before attackers exploit them. 

When a product is no longer supported, those security updates may stop entirely.

A modern infrastructure refresh can help introduce:

• Windows 11-compatible devices
• Current server operating systems
• Endpoint Detection and Response
• Multi-factor authentication
• Conditional Access
• Modern encryption
• Secure device management
• Improved logging and monitoring

Replacing outdated technology therefore strengthens more than performance. It improves the organisation’s overall security position.

2. Windows 10 Is Now a Business Risk

Windows 10 reached the end of general support on 14 October 2025. Microsoft identifies version 22H2 as the final standard version of the operating system. 

A Windows 10 computer may continue to operate, but that does not mean it remains suitable for normal business use.

Businesses still using Windows 10 should determine:

• Which devices can support Windows 11
• Which devices need replacing
• Whether specialist software is compatible
• Whether temporary Extended Security Updates are required
• How user data and settings will be migrated
• How the upgrade will be scheduled

Extended Security Updates may provide temporary protection for eligible systems, but they should generally be treated as a short-term transition measure rather than a permanent strategy. Microsoft states that the Windows 10 ESU programme provides security updates after the standard end-of-support date but does not restore normal product support or feature development. 

A planned refresh avoids leaving employees on unsupported devices or attempting to replace large numbers of computers during an emergency.

3. Windows Server 2016 Support Ends in 2027

Windows Server 2016 reaches the end of extended support on 12 January 2027. After that date, standard security updates and support will no longer be provided under its normal lifecycle. 

Businesses using Windows Server 2016 should begin planning well before the deadline.

The system may currently host:

• File shares
• Active Directory
• Business applications
• Databases
• Printing
• Remote desktop services
• Backup software
• Virtual machines

Replacing or migrating a server can be more complex than replacing an employee laptop.

Applications may depend on:

• Older operating systems
• Specific database versions
• Hard-coded server names
• Legacy authentication
• Local file paths
• Specialist integrations
• Unsupported hardware

A proper assessment should determine whether each workload should be:

• Upgraded to a newer server platform
• Moved to Microsoft Azure
• Replaced with a cloud application
• Migrated to Microsoft 365
• Retired completely
• Temporarily retained with additional controls

Starting this work during 2026 provides time for testing, supplier coordination and controlled migration.

4. Old Devices Reduce Employee Productivity

Slow devices create a cost every working day.

Employees may lose time because of:

• Long startup times
• Delayed application loading
• Freezing
• Poor video-call performance
• Insufficient memory
• Failing storage
• Battery problems
• Unreliable wireless connectivity
• Repeated support issues

The impact may appear small when viewed one incident at a time.

However, a few minutes lost by every employee each day can become a significant productivity problem over the course of a year.

Older equipment can also frustrate employees and make routine work feel unnecessarily difficult.

Modern devices with solid-state storage, sufficient memory and current processors can provide:

• Faster startup
• Better multitasking
• Improved video conferencing
• Greater battery life
• Stronger security
• Better support for modern applications
• Reduced support demand

An infrastructure refresh should therefore consider the employee experience as well as technical specifications.

5. Ageing Hardware Costs More to Maintain

Keeping old equipment may appear cheaper than replacing it, but the visible purchase price is only one part of the calculation.

Ageing systems may require:

• More frequent repairs
• Replacement components
• Additional support time
• Extended warranties
• Specialist technical knowledge
• Emergency callouts
• Temporary workarounds
• Higher electricity consumption

Older equipment can also fail unexpectedly, creating rushed replacement costs and unplanned downtime.

A proactive refresh allows the business to:

• Budget replacement costs
• Standardise equipment
• Negotiate purchasing
• Schedule installation
• Prepare users
• Dispose of old hardware securely
• Avoid emergency procurement

Predictable investment is generally easier to manage than an unexpected infrastructure failure.

6. Modern Cybersecurity Tools May Require Modern Hardware

Current security platforms place greater demands on devices than traditional antivirus software.

A modern endpoint may need to support:

• Behavioural threat detection
• Disk encryption
• Device compliance
• Secure boot
• Hardware-backed credential protection
• Endpoint telemetry
• Automated investigation
• Remote isolation

Older computers may technically run some of these services but perform poorly or lack the hardware capabilities needed for stronger protection.

Refreshing devices gives the business an opportunity to build security into the equipment from the start.

This may include:

• Trusted Platform Module support
• BitLocker encryption
• Windows Hello for Business
• Modern firmware
• Secure Boot
• Central management through Microsoft Intune
• Endpoint protection through Microsoft Defender or another managed platform

Security should be part of the purchasing specification rather than something added after installation.

7. Cloud Services Need Reliable Networks

Many businesses have moved email, documents and applications into the cloud without upgrading the network that employees use to access them.

The result can be:

• Slow application performance
• Poor Teams calls
• Wireless dead zones
• Unstable connections
• Long file-sync times
• Interrupted remote sessions
• Reduced employee confidence in cloud services

An infrastructure refresh should review:

• Internet bandwidth
• Secondary internet connectivity
• Firewall capacity
• Network switches
• Structured cabling
• Wireless access points
• Network segmentation
• Remote-access arrangements

A ten-year-old wireless network may not be suitable for a business where every employee now uses laptops, smartphones, Teams meetings and cloud applications throughout the day.

Refreshing network infrastructure can improve performance, coverage, security and reliability.

8. Your Backup Environment May Also Be Outdated

Businesses often focus on production systems while overlooking the infrastructure used for backup and recovery.

Older backup systems may suffer from:

• Limited storage
• Slow recovery
• Unsupported software
• Weak encryption
• Poor ransomware protection
• Shared administrator credentials
• Incomplete cloud coverage
• No immutable copy
• Failed or untested jobs

A backup report showing “successful” does not prove that the business can restore its systems within an acceptable period.

An infrastructure refresh should review:

• What is being backed up
• Where copies are stored
• Whether backups are isolated
• Whether cloud data is included
• Who can access backup systems
• How often restorations are tested
• How long recovery would take
• How much data could be lost

Modern backup and disaster-recovery services can improve resilience, but they must be designed around the business’s recovery requirements.

9. Hybrid Working Has Changed Infrastructure Requirements

Many IT environments were originally designed for employees working from one office.

Today, staff may work from:

• Home
• Customer premises
• Shared offices
• Hotels
• Multiple business locations
• Mobile devices

This creates new requirements for:

• Secure laptops
• Multi-factor authentication
• Conditional Access
• Cloud file sharing
• Mobile device management
• Remote support
• Device encryption
• Secure internet access
• Identity monitoring

An infrastructure refresh provides an opportunity to replace old remote-access methods and standardise how employees connect to business systems.

The aim should be to give employees a consistent and secure experience regardless of where they work.

10. New Technology Requires a Stronger Foundation

Businesses are increasingly exploring:

• Artificial intelligence
• Automation
• Data analytics
• Power BI
• Microsoft Copilot
• Cloud applications
• Internet-connected equipment
• Digital customer services

These technologies depend on reliable infrastructure, secure data and well-managed identities.

Introducing advanced tools while the underlying environment is outdated can create disappointing performance and unnecessary security risks.

Before investing heavily in AI or automation, businesses should ensure they have:

• Current devices
• Reliable connectivity
• Secure Microsoft 365 configuration
• Accurate permissions
• Suitable data storage
• Strong identity protection
• Appropriate backup
• Effective monitoring

An infrastructure refresh creates the foundation on which future technology projects can succeed.

Signs Your Infrastructure Needs Refreshing

Your business may need a review if:

• Devices are regularly slow or unreliable
• Windows 10 remains widely deployed
• Windows Server 2016 is still in use
• Hardware is no longer covered by warranty
• Employees experience poor Wi-Fi
• Support tickets repeatedly involve the same systems
• Applications are incompatible with current software
• Backups have not been tested
• Equipment replacement is entirely reactive
• Former employees still have accounts
• Administrator permissions are excessive
• Cybersecurity tools cannot be fully deployed
• There is no current asset register
• The business has no documented technology roadmap

One warning sign may not justify a complete replacement programme, but several together usually indicate that the environment needs attention.

Should You Replace Everything at Once?

Not necessarily.

A phased refresh is often more practical and less disruptive.

For example:

Phase One: Critical Risk

Replace unsupported and business-critical systems first.

This might include:

• Windows 10 devices
• Windows Server 2016
• Unsupported firewalls
• Failing backup equipment
• Unencrypted laptops

Phase Two: Performance and Reliability

Address systems causing repeated support issues or productivity loss.

This may include:

• Slow laptops
• Poor wireless access
• Old switches
• Limited storage
• Unreliable power protection

Phase Three: Modernisation

Introduce improvements that support future growth.

This may include:

• Microsoft Intune
• Azure services
• SharePoint
• Cloud telephony
• Automation
• Advanced cybersecurity
• Business intelligence

A phased roadmap allows the business to spread costs while still addressing the most urgent risks.

Refresh, Upgrade or Move to the Cloud?

An infrastructure refresh does not always mean replacing an old physical server with a newer physical server.

For each system, the business should consider whether it should be:

• Replaced
• Upgraded
• Migrated
• Consolidated
• Retired

Examples include:

• Replacing a file server with SharePoint and OneDrive
• Moving an application server into Azure
• Replacing a legacy accounting package with a supported cloud service
• Consolidating several physical servers into virtual infrastructure
• Retiring unused applications
• Replacing an ageing phone system with cloud telephony

The right decision depends on performance, security, compliance, costs and application requirements.

How to Plan an Infrastructure Refresh

Create an Asset Register

Record:

• Devices
• Servers
• Network equipment
• Operating systems
• Warranty dates
• Purchase dates
• Assigned users
• Business applications
• Support status

Identify Critical Systems

Determine which services would cause the greatest impact if they failed.

Review Product Lifecycles

Check operating systems, hardware warranties and software support dates.

Assess Security

Identify unsupported systems, missing protection and weak configurations.

Speak to Employees

Understand which systems are slow, unreliable or difficult to use.

Build a Budget

Estimate costs over several years rather than treating each purchase as an isolated event.

Create a Roadmap

Prioritise work according to risk, business impact and available budget.

Test Changes

Check compatibility and recovery before replacing critical systems.

Communicate Clearly

Tell employees what is changing, why it is changing and what they need to do.

Review the Result

Confirm that the refresh improved performance, security and reliability.

Common Infrastructure Refresh Mistakes

Businesses should avoid:

• Waiting for equipment to fail
• Buying solely on price
• Replacing hardware without reviewing the wider environment
• Migrating old problems into the cloud
• Ignoring application compatibility
• Forgetting backup and disaster recovery
• Failing to involve employees
• Purchasing inconsistent device models
• Leaving old systems connected
• Disposing of storage without secure erasure
• Treating the refresh as a one-off exercise

Technology needs regular lifecycle management.

A five-year roadmap is generally more effective than repeatedly responding to emergencies.

What About Systems That Cannot Be Replaced Yet?

Some businesses rely on legacy systems connected to:

• Manufacturing equipment
• Laboratory devices
• Building controls
• Specialist machinery
• Older databases
• Bespoke applications

Immediate replacement may not always be possible.

Where unsupported technology must remain temporarily, the NCSC recommends controls such as network segregation, additional monitoring and measures to reduce the likelihood and impact of compromise. 

The business should document:

• Why the system remains in use
• Which risks it creates
• Which temporary protections apply
• Who is responsible
• When it will be replaced
• What happens if it fails

“Temporary” systems should not remain indefinitely without review.

How Hamilton Group Can Help

Hamilton Group helps UK businesses assess, modernise and manage their IT infrastructure.

Our services can include:

• IT infrastructure assessments
• Technology lifecycle planning
• Windows 11 migrations
• Windows Server upgrades
• Microsoft 365 migrations
• Microsoft Azure solutions
• Laptop and desktop deployment
• Microsoft Intune
• Windows Autopilot
• Network upgrades
• Business Wi-Fi
• Firewall replacement
• Backup and disaster recovery
• Managed IT support
• Managed cyber security
• Cyber Essentials support
• Cloud consultancy
• IT strategy and roadmaps

We can review your existing environment, identify unsupported or unreliable systems and create a phased improvement plan based on your operational needs and budget.

Our aim is not to replace technology unnecessarily. It is to help your business reduce risk, improve reliability and invest in infrastructure that supports future growth.

Start Planning Before Your Technology Forces the Decision

An infrastructure refresh is easier, safer and more cost-effective when it is planned.

Waiting for an ageing server to fail or an unsupported device to be compromised can turn a manageable project into a business emergency.

The period covering 2026 and 2027 is particularly important because many organisations must now address Windows 10 devices while also preparing for the end of Windows Server 2016 support.

A structured refresh can help your business:

• Reduce cybersecurity risk
• Improve employee productivity
• Lower support demand
• Strengthen backup and recovery
• Support hybrid working
• Control future costs
• Prepare for cloud and AI adoption
• Build a more reliable technology environment

To arrange an infrastructure review or discuss a phased technology refresh, contact Hamilton Group on 0330 043 0069 and speak to one of our experts today.