Description
Windows for everyday business
Whether you run a business from home, operate as a sole trader or look after computers for an Irish company, Windows 11 Pro provides a useful set of professional capabilities. It builds on the familiar Windows environment with additional options for controlling devices, securing information and connecting to workplace systems. It suits people who need more than basic desktop functions but want to retain the everyday Windows experience.
Independent professionals and smaller Irish organisations often handle sensitive documents, customer information and work across different locations. Windows 11 Pro includes tools to help manage these requirements. You can encrypt local drives, connect a computer to an organisation's network environment and configure selected settings for business use. It is also a suitable option for a dedicated home office computer.
Confirm your PC can run it
Check the specifications of your existing equipment before placing an order. A compatible 64-bit processor with two or more cores and a clock speed of at least 1 GHz is required. Your computer also needs 4 GB RAM, 64 GB storage, UEFI firmware with Secure Boot capability and a TPM 2.0 security module.
Graphics must support DirectX 12 and use a WDDM 2.0 driver. The screen needs to measure more than 9 inches and provide a resolution of at least 720p. Internet access is required for the initial setup process.
Microsoft PC Health Check can help establish whether your current machine meets the required specifications. This is particularly useful when preparing older office computers for an operating system upgrade.
More control over your computer
Alongside the standard Windows 11 desktop, including its Start menu, taskbar, Snap layouts and multi-monitor support, the Pro edition provides additional management and security facilities. Microsoft Defender and Windows Hello are also available on compatible equipment.
- BitLocker: Apply drive encryption to help keep business files protected.
- Remote Desktop hosting: Allow authorised remote connections to your computer.
- Domain membership: Add your PC to a supported business domain.
- Microsoft Entra ID: Register equipment with an organisation's cloud identity system, previously known as Azure AD.
- Group Policy: Manage supported configuration settings across Windows devices.
- Hyper-V: Set up virtual computers for separate computing environments.
- Windows Sandbox: Test applications in an isolated space.
- Windows Update for Business: Set policies for managing operating system updates.
- Assigned Access: Restrict a computer to a specified user experience.
TPM 2.0 provides hardware-based security support. The operating system is compatible with Microsoft 365 products such as Word, Excel and PowerPoint. These applications require a separate purchase and are not part of this licence.
Choose your device quantity
Decide how many computers need Windows 11 Pro before selecting your preferred option:
- 1 device: A convenient choice for a self-employed professional or home office.
- 5 devices: Suitable for a small Irish company with several workstations.
- 10 devices: For offices requiring licences across a larger number of computers.
All options provide a new perpetual licence for the current version, with payment made once rather than through an ongoing subscription. TresBizz also applies volume pricing to orders of 3, 5 or 10 pieces, lowering the cost per licence. Prices for Irish buyers are shown in EUR.
Payment and VAT details
TresBizz operates from Brussels, Belgium and supplies genuine new software licences to customers through electronic fulfilment. Irish shoppers can pay by bank card, Apple Pay, Google Pay or PayPal. An official VAT invoice accompanies every purchase. Business customers within the EU can enter their VAT identification number at checkout. Reverse charge treatment is applied where the applicable VAT requirements are met.
Digital delivery by email
Your order does not involve a parcel or physical product. TresBizz sends the Windows 11 Pro activation key, software download link and installation instructions to your email address. Delivery normally takes only a few minutes, with a maximum delivery period of 24 hours. Use the supplied guide to obtain the software and carry out installation and activation.
Microsoft provides ongoing security and feature updates for Windows 11 Pro. Keep your installation updated through Windows Update to remain on a supported version. Should activation fail, email the TresBizz support team. A replacement or refund will be arranged if the licence key supplied cannot be activated.
Windows 11 Pro Questions and Answers
How do I purchase Windows 11 Pro in Ireland?
Visit the TresBizz online shop and select your Windows 11 Pro licence quantity. Prices are listed in EUR, with bank cards, Apple Pay, Google Pay and PayPal available at checkout. Your licence details are sent electronically.
Would Windows 11 Pro suit an Irish sole trader?
Yes. It offers useful facilities for independent professionals, including encrypted drives, remote PC access and additional administration settings. You can select a single-computer licence for your main business workstation.
Are Word and Excel part of the Windows 11 Pro licence?
No. Windows 11 Pro supports Microsoft 365 applications, including Word, Excel and PowerPoint, but their licences are separate. You must purchase Microsoft 365 independently if you need these applications.
Can I equip five or ten business computers?
Yes. TresBizz provides licence quantities for 1, 5 and 10 devices. Orders of 3, 5 or 10 pieces can also benefit from volume pricing, which reduces the individual licence cost.
Can an Irish company enter its VAT number?
Yes. EU-based business purchasers can submit their VAT identification number during checkout. Reverse charge treatment is available when the applicable VAT requirements are fulfilled. Each order includes an official VAT invoice.



















sami –
The new Windows 11 Pro is incredible! It’s fast, efficient, and elegant. I had concerns about upgrading, but Tressbiz IT Company assuaged all my worries. They provided exceptional technical assistance that made the upgrade process a breeze.
saniya –
Windows 11 Pro has brought a remarkable change in my computing experience. I want to extend my appreciation to Tressbiz IT Company. Their expert services ensured a smooth and secure transition to the new system. I’m enjoying the sleek design and boosted productivity.
Sanjay –
Ever since I upgraded to Windows 11 Pro, my experience has been nothing short of spectacular. Thanks to Tressbiz IT Company for making the transition seamless and effortless. Their team provided me with excellent guidance and support throughout the process, truly showcasing their professionalism. The new system is remarkably efficient and user-friendly.
yathish –
I am genuinely impressed with Windows 11 Pro! The improved multitasking and direct access to Android apps are game-changers. A big shout out to Tressbiz IT Company, whose professional services made the upgrade stress-free and easy. Their team was patient, knowledgeable, and highly competent.
surrender –
Windows 11 Pro is truly an upgrade! It’s a joy to use and comes with exciting features. I want to give credit where it’s due – Tressbiz IT Company. Their professionalism and commitment to quality service made the transition easier than I had imagined. They are truly a leader in their field.
Ammara –
Before buying this window activation key, i was really apprehensive about its authenticity. But after getting this in the form of paper, i scrateched my key and used it. I am really glad that this is absolutely original and works perfect!
Kevin –
Received on time. Instructions letter was attached for easy understanding of usage.
Morten –
The product activated sucessfully.
Jamal –
Original product
shiela –
I recently upgraded to Windows 11 Pro, and it’s been a revelation. The system is streamlined, intuitive, and offers a host of new features. But what truly made the experience great was Tressbiz IT Company. Their excellent customer service and technical expertise ensured that the transition was smooth and hassle-free.
sani –
We have four compelling reasons to upgrade to Windows 11 and five compelling reasons to continue with Windows 10.
Shashwat –
Delivered quickly through email, complete code, and everything works.