Installation Guides & Activation

Step-by-step instructions for installation and activation

Installation Guides: Windows Installation

Windows Installation

Windows 10 EnterpriseWindows 10 EnterpriseWindows 10 Enterprise LTSBWindows 11 HomeWindows 11 ProWindows 11 HomeWindows 10 HomeWindows 11 ProWindows 10 ProWindows 10 HomeWindows 10 ProWindows 11 EnterpriseWindows 11 EnterpriseWindows 10 Enterprise LTSC 2019Windows 10 Enterprise LTSC 2021Windows 10 Enterprise LTSC 2019Windows 10 Enterprise LTSC 2021

Windows 10 and 11 installation and activation

1. Download the software

Please first download the appropriate software directly from the official Microsoft servers.

Windows 10

Download Windows 10 (Official Microsoft page)

Windows 11

Download Windows 11 (Official Microsoft page)

Tip for Windows users: On the Microsoft page you will find the "Media Creation Tool". Download it and run it to create a bootable USB stick or to start the upgrade directly.


2. Activate Windows 10 and Windows 11

Once Windows is installed, follow these steps to activate it. Make sure you have an internet connection.

Step-by-step:

  1. Open the Start menu and click on the gear icon (Settings).
  2. Depending on your version, go to:
  3. Windows 10: Update & Security > Activation.
  4. Windows 11: System > Activation.
  5. Click on Change product key.
  6. A blue window opens. Enter your 25-character product key here.
  7. Click on Next. Windows will now activate automatically.

Important note: Please make sure that the installed Windows edition (e.g. "Home" or "Pro") matches the key you purchased. A "Home" key cannot activate a "Pro" version and vice versa.


Help with problems

If something does not work, please quickly check these points:

  • Avoid typos: Watch out for mix-ups such as 'Q' and '0' or 'B' and '8'.
  • Correct version: A "Home" key will not activate a "Pro" Windows. Check under Settings > System > About which version is installed.
  • Remove pre-installations: Uninstall pre-installed "trial versions" of Office (often present on new laptops) before installing your purchased version.

Do you need further assistance? Our support team is happy to help. Please have your order number ready.

A word on our own behalf

Why are thousands of Swiss businesses still paying full price for software licenses?

At Keywi24 we specialise in verified software licenses: legal, function-tested and considerably cheaper than buying directly from the manufacturer. Our licenses come from company liquidations and surplus stock and, under the EU exhaustion principle (ECJ C-128/11), are freely tradable without restriction.

What this means for you: the same software, the same updates, the same support from Microsoft — simply at a fair price. And with our 90-day support you are never on your own should anything go wrong during setup.

Windows 10 Enterprise

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Windows 10 Enterprise

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Frequently asked questions

1

Do I need a USB stick for the installation?

Not necessarily. You can download the Windows Media Creation Tool directly and install with it.

2

Can I upgrade from Windows 10 to Windows 11?

Yes, if your PC meets the system requirements. The key works for both versions.

3

What do I do if the activation does not work?

Try the activation by phone. If that does not work: we will replace the key free of charge or issue a refund.