Windows Server Licences and CALs

Servers provide the backbone of your infrastructure, but without the right licensing, they can’t operate to their full capacity. At Renewtech, we supply official Windows Server licences and CALs (Client Access Licences) that enable performance, compliance, and secure access across your IT systems.

Our catalogue includes both Windows Server Standard and Datacenter editions, along with User and Device CALs that let your teams connect safely. Whether you’re deploying refurbished Dell, HPE, Lenovo, or Cisco servers, or expanding existing setups, Windows licensing is the essential link that makes it all work.

Windows Server licences at the right price

We carry Windows Server 2016, 2019, 2022, and the latest versions. Every licence is ready for activation, so you can install without unnecessary delays.

• Windows Server Standard – suited for general workloads, branch offices, and small to medium businesses. Reliable and cost-effective where heavy virtualisation isn’t required.

• Windows Server Datacenter – the enterprise solution for highly virtualised or cloud-based environments. With unlimited virtualisation rights, it’s ideal for data centres, hosting providers, and businesses consolidating infrastructure.

• Upgrade licences – available in flexible increments of 2 cores or 16 cores, making it easy to scale in line with your infrastructure growth.

Many organisations in the UK pair our refurbished hardware with Windows licences to create a balanced solution that combines performance with long-term savings.

Windows CALs: secure access for your users

Having a Windows Server licence is just the start. To stay compliant and secure, you also need CALs that define who can connect.

• User CALs – ideal for staff members logging in from multiple devices (desktop, laptop, mobile).

• Device CALs – the best fit where multiple users share the same machine, such as in factories or shift-based roles.

• RDS CALs (Remote Desktop Services) – crucial for remote teams needing access to desktops and applications from anywhere.

We provide CALs individually or in bulk packs, helping you scale access cost-effectively. Choosing the right CAL model can significantly reduce expenses — and our team is here to help guide the decision.

Pairing licences with refurbished servers

At Renewtech, many customers don’t just purchase licences alone — they combine them with refurbished servers. That’s where the real benefit lies.

• A refurbished Dell PowerEdge server running Windows Server Standard is an affordable branch office solution.

• An HPE ProLiant system licensed with Windows Datacenter can support dozens of virtual machines for ERP or databases.

• Lenovo ThinkSystem servers combined with Windows Server 2022 or 2025 editions form a strong base for hybrid IT.

Pairing refurbished enterprise hardware with the right Windows Server licence allows you to extend system lifecycles and stay compliant without overspending on brand-new equipment.

Windows Server versions: from 2016 onwards

Different businesses require different versions of Windows.

• 2016 – still reliable for legacy systems and companies that don’t require the latest functions.

• 2019 – widely adopted, often the upgrade path for organisations moving away from 2012 R2.

• 2022 – modern security and long-term support, a strong option for expanding businesses.

• 20xx – the latest release, designed for new workloads and hybrid IT strategies.

With multiple generations available, you can choose the version that best fits your operational needs, not just the newest option.

Solving licensing challenges for IT teams

Licensing is often complex. Many IT managers aren’t sure how many CALs they need or whether Standard or Datacenter is the better fit. Mistakes can lead to overspending or compliance risks.

This is where our expertise comes in. We help businesses across the UK — from London and Manchester to Birmingham and Glasgow — match their refurbished hardware with the right Windows licensing.

Remote work and virtualisation simplified

Remote Desktop Services (RDS) has become critical for modern IT. With RDS CALs, teams can securely connect to desktops and applications whether they’re in the office, working from home, or on the move.

When paired with refurbished servers, RDS licensing gives businesses a straightforward way to support hybrid work without replacing infrastructure unnecessarily.

Cost efficiency and sustainability

Choosing refurbished servers is already a sustainable decision. Adding Windows licences on top ensures maximum value without sacrificing security or compliance.

• Save up to 80% compared to new servers.

• Stay compliant with licensed Microsoft software.

• Extend the lifecycle of enterprise IT while cutting CO₂ emissions.

This combination — refurbished hardware and Windows Server licensing — is what sets Renewtech apart.

Why UK businesses choose Renewtech for Windows licensing

Companies rely on us because we provide more than just licence keys.

• Official Microsoft Windows Server licences and CALs.

• Fast delivery from our own warehouse.

• Support for multiple versions: 2016, 2019, 2022, and 2025.

• Integration with refurbished Dell, HPE, Lenovo, Cisco, and Supermicro servers.

• Expert guidance to ensure compliance without overspending.

Whether you’re equipping a small office or managing a large data centre, we make sure your licences and servers work seamlessly together.

Find your Windows Server licence today

Browse our full selection of Windows Server licences and CALs — Standard, Datacenter, User CALs, Device CALs, and RDS CALs.

You can:

• Use our Server Configurator to align licences with refurbished servers.

• Combine licences with Dell, HPE, Lenovo, Cisco, and more.

• Scale confidently, knowing every licence is ready for activation.

At Renewtech, we keep licensing straightforward. Windows Server software delivered quickly, combined with enterprise hardware — so your IT runs at full capacity without unnecessary costs.