Buy Windows 11 Pro for Workstations cheap – Perpetual licence 1 PC | Instant download
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39,95 €
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Lowest price in the last 30 days: 30,99 €
30,99 €
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Product description
Microsoft Windows 11 Pro for Workstations
Buy Windows 11 Pro for Workstations cheap – Perpetual licence with instant download for 1 PC
Windows 11 Pro for Workstations as an affordable perpetual licence with unlimited duration for a high-performance PC. Supports up to 6 TB of RAM and 4 physical processors – designed for video editing, 3D rendering, CAD, software development, machine learning and data-intensive analysis. Buy once instead of subscribing monthly.
Instant delivery of the Windows 11 Pro for Workstations product key by email after receipt of payment. Includes a download link to the original Microsoft ISO, an English step-by-step guide and a proper invoice showing 19% VAT.
At Karinex you receive a particularly affordable original licence, German-language support, a 100-day money-back guarantee on unactivated product keys and a perpetual licence with no subscription commitment.
Licence type
Perpetual licence
Platform
Windows 11 (64-bit)
Duration
Unlimited, no subscription
Delivery
Instantly by email
Licence type and legal framework
You acquire a pre-owned, fully exhausted volume licence for Microsoft Windows 11 Pro for Workstations for permanent use on one device. The licence was originally acquired lawfully by a commercial first purchaser under a Microsoft Volume Licensing Agreement.
The conditions for exhaustion pursuant to Section 69c No. 3 sentence 2 UrhG in conjunction with Art. 4(2) of Directive 2009/24/EC are met:
- The first sale took place within the EU with the consent of the rights holder (Microsoft).
- The previous owner has rendered the program copy unusable on their systems (uninstallation and deactivation).
- The licence chain is documented without gaps and can be disclosed on request (EuGH, judgment of 03.07.2012, C-128/11 "UsedSoft/Oracle"; BGH, judgment of 17.07.2013, I ZR 129/08 "UsedSoft II").
The product key is an inseparable part of this licence and can be activated once on one device. Simultaneous use on multiple devices is not permitted.
More on the legal situation when buying a licence: Buying a Windows 11 key – legal or illegal? The complete guide 2026.
Why buy Windows 11 Pro for Workstations at Karinex
01
Original Microsoft product key – activatable via the official Microsoft activation servers, verified licence origin.
02
Instant delivery in under 5 minutes – Windows 11 Pro for Workstations licence key by email directly after receipt of payment.
03
100-day money-back guarantee on unactivated product keys – risk-free purchase.
04
German-language Karinex support for installation and activation – by phone, email, WhatsApp and live chat.
05
Proper invoice with 19% VAT – tax-deductible for the self-employed and businesses.
06
Secure payment – Klarna, credit card, SEPA, giropay and purchase on account for business customers.
What's included with your Windows 11 Pro for Workstations licence
01
Original product key for Windows 11 Pro for Workstations, digital delivery by email
02
Download link to the Windows 11 ISO installation file (original Microsoft image, 64-bit)
03
Step-by-step installation and activation guide in German
04
Proper invoice showing 19% VAT, tax-deductible
05
German-language Karinex support for installation and activation
06
100-day money-back guarantee on unactivated licence keys
There is no physical delivery. You will not receive a DVD, a USB stick or a product box.
What makes Windows 11 Pro for Workstations unique
Pro for Workstations goes far beyond Windows 11 Pro – with features developed exclusively for performance-hungry professionals.
Up to 6 TB of RAM
Process huge datasets and virtual machines without bottlenecks
4 physical processors
Fully utilise multi-socket workstations with high core counts
ReFS file system
Resilient File System with automatic error correction for large files
Persistent Memory
Support for NVDIMM-N – non-volatile memory
SMB Direct (RDMA)
Network data transfer with minimal latency, ideal for RDMA
BitLocker encryption
Device encryption for internal and external drives
Hyper-V
Native virtualisation for multiple operating systems in parallel
Remote Desktop
Full remote access to your workstation from anywhere
Ideal for demanding workloads
Windows 11 Pro for Workstations is the right choice when standard editions reach their limits.
Video editing
4K and 8K editing in DaVinci Resolve, Premiere Pro and After Effects
3D rendering
Cinema 4D, Blender, Maya and 3ds Max with large scenes
CAD & engineering
AutoCAD, SolidWorks, CATIA and Revit for complex models
Software development
Containers, virtualisation and compile builds of large codebases
Machine learning & AI
Machine-learning training, data science, large datasets and GPU computing
Architecture firms
BIM, visualisation and multi-disciplinary projects
Financial analysis
Quantitative models, trading platforms and risk analysis
Server workloads
Local databases, build servers and parallel services
Windows 11 editions compared
Which Windows 11 edition suits your requirements? At Karinex you receive all editions as an affordable UsedSoft perpetual licence. Detailed comparison: Windows 11 Pro vs. Enterprise – Making the right choice.
Windows 11 Pro for Workstations
Up to 6 TB RAM, 4 CPUs, ReFS, Persistent Memory, SMB Direct – the maximum feature set for professionals
Up to 2 TB RAM, 2 CPUs – BitLocker, Hyper-V and Remote Desktop for SMEs
Windows 11 Enterprise
Edition for large enterprises with advanced IT management features
Windows 11 Home
Up to 128 GB RAM, 1 CPU – without BitLocker, Hyper-V or domain join
System requirements for Windows 11 Pro for Workstations
Processor
1 GHz or faster, 2+ cores on a compatible 64-bit Intel or AMD processor
RAM
at least 4 GB (8 GB or more recommended)
Storage
at least 64 GB of free storage, SSD recommended
Graphics
DirectX 12 compatible with WDDM 2.0 driver
Firmware
UEFI with Secure Boot
TPM
TPM version 2.0
Display
HD resolution (720p), 9 inches or larger, 8 bits per colour channel
Internet
required for download, activation and updates
Installing Windows 11 Pro for Workstations – guide in 5 steps
A quick overview of the most important steps. You can find a detailed, illustrated step-by-step guide with system requirements, BIOS settings and FAQ in our guide: Installing Windows 11 – step by step.
01
Check your email – You will receive the product key and download link after receipt of payment.
02
Download the Windows 11 ISO – Via the supplied link or the Microsoft Media Creation Tool.
03
Installation or upgrade – Clean reinstallation or a direct upgrade from Windows 10/11.
04
Enter the product key – Under Settings → System → Activation → Change product key.
05
Activate online – Connect the PC to the internet for automatic activation.
Karinex customer support
Service hours
Mon–Fri, 10:00–18:00
Channels
Phone · WhatsApp · Email · Live chat
Language
German
Frequently asked questions
Why is Windows 11 Pro for Workstations so cheap at Karinex?
At Karinex you receive original Microsoft licences at particularly low prices, because we trade pre-owned volume licences under the UsedSoft model (EuGH C-128/11). This way you save considerably compared with buying new from Microsoft – without compromising on originality or activatability.
What do I receive after the purchase?
You will receive by email the Windows 11 Pro for Workstations product key, a download link to the original ISO, as well as an installation guide in German and an invoice with VAT.
Is this a perpetual licence?
Yes. Windows 11 Pro for Workstations is a purchase version with a perpetual licence – without a subscription and without recurring costs.
How fast is delivery?
Within a few minutes by email after receipt of payment. For bank transfers, 1–2 working days.
How do I install Windows 11 Pro for Workstations?
You can find a complete step-by-step guide with system requirements, BIOS settings, USB stick creation and activation in our guide Installing Windows 11 – step by step.
What distinguishes Pro for Workstations from Windows 11 Pro?
Pro for Workstations supports up to 6 TB of RAM (instead of 2 TB), 4 physical CPUs (instead of 2), the ReFS file system, Persistent Memory and SMB Direct – features that are not included in the standard Pro edition. Detailed comparison of the Pro editions: Windows 11 Pro vs. Enterprise.
On how many PCs can I install it?
This licence is intended for activation on one PC. Simultaneous use on multiple devices is not permitted.
Does the upgrade from Windows 10 work?
Yes. A direct upgrade from Windows 10 Pro or Pro for Workstations to Windows 11 Pro for Workstations is possible, provided the hardware meets the minimum requirements (TPM 2.0, Secure Boot).
Is reselling legally permitted?
Yes. The EuGH judgment C-128/11 "UsedSoft/Oracle" of 03.07.2012 and BGH I ZR 129/08 "UsedSoft II" confirm the resale of exhausted software licences within the EU. Detailed guide on the legal situation: Buying a Windows 11 key – legal or illegal?.
What about the right of withdrawal?
Upon activation of the key, the right of withdrawal expires (§ 356 para. 5 BGB). For unactivated keys, the 100-day money-back guarantee applies.
Further recommendations
Complementary products from our range for your workstation.
Standard Pro edition with BitLocker, Hyper-V and Remote Desktop – ideal for SMEs without workstation requirements.
Microsoft Office 2021 Professional Plus
Complete Office suite with Word, Excel, PowerPoint, Access and Publisher – the perfect complement to your workstation.
Proven Pro edition for older hardware that does not support TPM 2.0 or Secure Boot.
Microsoft Office 2024 Professional Plus
The latest Office generation with updated features – as a perpetual licence without a subscription.
Further links
Legal information
Licence type. Pre-owned, fully exhausted volume licence for Microsoft Windows 11 Pro for Workstations with unlimited duration (perpetual licence) for use on one PC.
Delivery format. Exclusively digital by email, no physical delivery.
Legality. Trade permitted under Section 69c No. 3 sentence 2 UrhG in conjunction with Art. 4(2) of Directive 2009/24/EC, EuGH C-128/11 "UsedSoft/Oracle" (03.07.2012) and BGH I ZR 129/08 "UsedSoft II" (17.07.2013).
Trademark rights. Microsoft® and Windows® are registered trademarks of the Microsoft Corporation. These trademarks are used solely to describe the product; there is no business connection with Microsoft. Karinex acts as an independent reseller.
Money-back guarantee. 100 days on unactivated product keys together with the statutory warranty.
Frequently Asked Questions
- Wie erhalte ich mein Produkt?
Du erhältst deinen Lizenzschlüssel direkt nach der Bestellung per E-Mail. - Kann ich das Produkt zurückgeben?
Du hast 100 Tage Rückgaberecht. Sobald der Lizenzschlüssel zugestellt wurde, erlischt das Widerrufsrecht gemäß § 356 Abs. 5 BGB. - Funktioniert der Key sofort?
Ja, du kannst den Lizenzschlüssel direkt nach Erhalt aktivieren. - Für welches Betriebssystem ist das Produkt?
Die unterstützten Betriebssysteme findest du in der Variantenauswahl oberhalb des Warenkorb-Buttons.
Delivery & notes
- Digitale Lieferung per E-Mail — sofort nach Zahlungseingang
- Lizenzschlüssel direkt einsetzbar
- 100 Tage Rückgaberecht — bis zur Zustellung des Lizenzschlüssels
- Nach Key-Zustellung erlischt das Widerrufsrecht gemäß § 356 Abs. 5 BGB
- Bei Problemen mit der Aktivierung: Kundenservice kontaktieren
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