Microsoft
Windows Server
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Windows Server
Microsoft Windows Server 2025 CAL (User): Client Access License (CAL) per user for Windows Server 2025. It complements the server license and contains no server software.
Guide: License glossary: CAL, core, LTSC, SE and other terms explained
Not sure it fits? We will check it with you – tell us your server environment.
If a key does not work: If the delivered key is faulty, you first receive a replacement; if the replacement does not help either, we will consider refunding the purchase price. Your statutory warranty rights remain unaffected.
With your order you receive instructions for installation and activation. If you get stuck, we help personally by email or contact form, on request also by Callback or remote help (TeamViewer) at the agreed time.
If the delivered product key is legitimately faulty, we will in principle first provide a replacement. If the problem persists after the replacement, we will consider refunding the purchase price concerned. If a problem only occurs later, we will first check the cause. Statutory warranty rights remain unaffected.
Purchasing and use
Cores, CALs and virtualization for your server environment: we are happy to clarify with you before you order. On request you receive with your order Proof of origin and Declaration of assignment. The right of use is governed by the manufacturer's license terms.
Information for business customers
For resellers, the claim must relate to a specific order line. For the review we may request an error code, a screenshot or a technical diagnosis. After a replacement, in the event of a further justified complaint, we will consider a credit note or refund. Replaced or refunded keys must not be used further or resold.
product key by email. Delivery time: Within 24 hours after payment is received.
We are happy to tell you the activation method for this offer before you order.
Tell us your current version, edition and operating system – we will check with you before the purchase whether this offer fits.
This offer includes a product key for activation; the right of use is governed by the manufacturer's license terms (Terms and Conditions § 4). For resellers we provide the B2B documents listed with the offer on request.
Manufacturer support ends on 14/11/2034. After that, no further security updates are planned for this version. A perpetual license does not extend the support period.
Platform: Windows Server
74,90 €
incl. VAT
Delivery: Instantly by email
Platform: Windows Server
39,90 €
incl. VAT
Delivery: Within 24 h
Platform: Windows Server
27,90 €
incl. VAT
Delivery: Within 24 h
Platform: Windows Server
15,99 €
incl. VAT
Delivery: Within 24 h
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