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Windows Server 2025, 2022, 2019 and 2016 licences (Standard, Datacenter, Essentials), Remote Desktop client access licences (RDS CALs) and SQL Server, for SMEs and freelancers in Switzerland. Key by email within 24 hours with an invoice, payment in CHF by TWINT or card. Choosing the edition and CALs is explained in the frequently asked questions.

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Server

Frequently asked questions

Which version of Windows Server should I choose?
For a new installation, Windows Server 2025, supported by Microsoft until November 2034. Windows Server 2022 is supported until October 2031, 2019 until January 2029 and 2016 until January 2027. An older version mainly makes sense if business software requires it.
Standard, Datacenter or Essentials?
Standard covers one physical server and up to two Windows Server virtual machines. Datacenter allows an unlimited number of virtual machines on the server, for heavy virtualisation. Essentials is aimed at small organisations (up to 25 users and 50 devices) and needs no CALs. Microsoft licensing rights also depend on the number of processor cores: check them for a server with more than 16 cores.
Do I need client access licences (CALs)?
For users to open a Remote Desktop (RDS) session on the server beyond the two administration sessions, each user or device needs an RDS CAL of the same version as the server or newer. A User CAL covers one person on all their devices; a Device CAL covers one device shared by several people.
How do I activate Windows Server?
Under Settings > System > Activation, or with the command slmgr /ipk followed by the key in an administrator command prompt, then activate online or by phone (guide). A server installed from an evaluation version must be converted first; if in doubt, write to us before buying.
When will I receive my key, and what if it doesn't work?
By email, within 24 hours of payment, together with your invoice (please also check your spam folder). If the key does not activate, let us know within 7 days at support@chkey.ch: after checking, we replace it or refund you. Details: Shipping & Returns.
Are these licences legal in Switzerland?
Our guide explains the rules on reselling software licences in Switzerland: Are cheap licence keys legal in Switzerland?

Microsoft solutions for professional servers: Windows Server (2016 to 2025), SQL Server and Remote Desktop client access licences (RDS CAL). Everything you need to equip your IT infrastructure legally, at a far more accessible price than buying direct from the publisher.

Our server licences suit Swiss SMEs and independent professionals managing their own infrastructure alike, with support for both physical and virtualised environments.

Why buy your server licences from chkey.ch? Activation support: our team helps you if you run into an activation problem.

Equip your IT infrastructure without delay, with a Switzerland-based point of contact.