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Buy Microsoft Windows

Windows 11 and Windows 10 licences in Switzerland: Home, Pro, Enterprise and Education editions, as an OEM key (tied to one PC) or a Retail key (transferable), plus 5-PC licences for small businesses. Key by email within 24 hours with an invoice, payment in CHF by TWINT or card. Not sure which edition you need? See the frequently asked questions or our guide OEM or Retail.

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Microsoft Windows

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Frequently asked questions

Windows 11 or Windows 10: which should I buy?
For a recent computer, Windows 11: it is the version Microsoft keeps developing. Support for Windows 10 Home and Pro ended on 14 October 2025: the system still works, but no longer receives free security updates. Windows 10 remains useful for a PC that does not meet the Windows 11 requirements (TPM 2.0 chip, supported processor). See Windows 11 and Windows 10.
Home or Pro?
Home is enough for personal use: browsing, office work, gaming. Pro adds BitLocker encryption, Remote Desktop access to your PC, Hyper-V and joining a company domain, which are useful for freelancers and SMEs. A Pro key upgrades a PC running Home without reinstalling.
OEM or Retail key: what is the difference?
Same software, same updates. An OEM key stays tied to the first computer it is activated on; a Retail key can be moved to another PC if you stop using it on the old one. If you plan to change your computer or motherboard, choose Retail. Find out more: OEM or Retail and Windows and the motherboard.
I am setting up several computers: what do you recommend?
The 5-PC licences for Windows 11 Pro and Windows 10 Pro cover five workstations with a single order and a single invoice. For single keys, volume pricing applies automatically in the cart from 3 identical licences; the tiers are shown on each product page.
What are the Enterprise, Education and LTSC editions for?
They are meant for organisations. Enterprise adds management and security tools for company networks, Education is for schools and training centres, and the LTSC (Long-Term Servicing Channel) versions only receive security updates, with no new features, for machines that must stay stable (tills, industrial PCs). For a home or office PC, Home or Pro is the right choice. LTSC keys require a confirmation at checkout: read the notice on the product page.
How do I activate my Windows key?
On Windows 11: Settings > System > Activation > "Change product key". On Windows 10: Settings > Update & Security > Activation. Enter the 25 characters you received by email, with an active Internet connection. Some keys are activated by phone: see the guide.
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?

The world's most widely used operating system, as a licence at Swiss prices: Windows 11, Windows 10, plus earlier versions for your older machines. Every key activates straight from Windows settings, with no subscription.

Whether you're installing Windows on a new computer or reactivating a licence after a reinstall, our catalogue covers every edition: Home, Pro and N Edition.

Why buy your Windows licence from chkey.ch?

Get your key by email within 24h and activate Windows in minutes, invoice included.