Best sellers, best operating Systems for Business

We also think that you deserve the best. That’s why on this page, we ranked operating Systems for Business from the most sold to the least sold. You have 45 products to choose from. Customers have the most interest in Microsoft Windows 11 Pro EN (OEM), which you can buy for 142.90 € incl. VAT. If you’re intrested in operating Systems for Business in terms of the highest reviews, then look at the operating Systems for Business reviews and tests category.

All operating Systems for Business

Microsoft Windows 11 Pro EN (OEM)

439×

142.90 €

In stock > 5 pcs

2 variants

Buy with code ALZADAYS10DE 128.61 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Operating System - Microsoft Windows 11 Pro intended for 1 device(s), license not portable, subscription lasts forever, permanent license, version in EN, install through CD/DVD,...

Microsoft Windows Server CAL 2025 - 1 Device CAL (OEM)

63.90 €

In stock 1 pcs

Buy with code ALZADAYS10DE 57.51 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Operating System - MS Windows Server intended for 1 device(s), license not portable, permanent license, version in EN, appropriate for businesses, intended for PC, compatible with...

Microsoft SQL Server 2025 Enterprise - 2 core License Pack - 3 year

22,969 €

Ordered on request

Office Software - digital licence (subscription - one-time licence), for 1 devices, subscription length 36 months, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard core - 2 core License Pack

5,059 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard - 2 core License Pack - 3 year

5,999 €

Ordered on request

Office Software - digital licence (subscription - one-time licence), for 1 devices, subscription length 36 months, for PC, compatible with Windows

Microsoft SQL Server 2025 Enterprise - 2 core License Pack - 1 year

9,149 €

Ordered on request

Office Software - digital licence (subscription - one-time licence), for 1 devices, subscription length 12 months, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard core - 2 core License Pack Nonprofit

2,029 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Enterprise core - 2 core License Pack

19,369 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard edition Perpetual 1 Server License Nonprofit

506.90 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard core - 2 core License Pack EDU

1,269 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Enterprise core - 2 core License Pack Nonprofit

7,749 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard edition Perpetual 1 Server License EDU

315.90 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard - 2 core License Pack - 1 year

2,389 €

Ordered on request

Office Software - digital licence (subscription - one-time licence), for 1 devices, subscription length 12 months, for PC, compatible with Windows

Microsoft SQL Server 2025 Enterprise core - 2 core License Pack EDU

4,849 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft SQL Server 2025 Standard edition Perpetual 1 Server License

1,269 €

Ordered on request

Office Software - digital licence (permanent license), for 1 devices, for PC, compatible with Windows

Microsoft Security Update for Windows 10 ESU Year 3 (2027 - 2028)

316.90 €

Ordered on request

Security Update - Microsoft Windows 10 for 10 devices, subscription length: 12 months, licensing method: subscription, installation method: download (electronically), suitable for...

Microsoft Security Update for Windows 10 ESU Year 1 (2025 - 2026)

79.90 €

Ordered on request

Security Update - Microsoft Windows 10 for 10 devices, subscription length: 12 months, licensing method: subscription, installation method: download (electronically), suitable for...

Microsoft Security Update for Windows 10 ESU Year 2 (2026 - 2027)

157.90 €

Ordered on request

Security Update - Microsoft Windows 10 for 10 devices, subscription length: 12 months, licensing method: subscription, installation method: download (electronically), suitable for...

Microsoft Windows 11 Pro (electronic licence)

299×

237.90 €

Available for download

4 variants

Operating System - Microsoft Windows 11 Pro intended for 1 device(s), portable license, subscription lasts forever, permanent license, install through download (electronically),...

Microsoft Windows Server CAL 2025 - 5 User CAL (OEM)

239.90 €

In stock 2 pcs

Buy with code ALZADAYS10DE 215.91 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Operating System - MS Windows Server intended for 5 device(s), license not portable, permanent license, version in EN, appropriate for businesses, intended for PC, compatible with...

Microsoft Windows Server CAL 2025 - 1 User CAL (OEM)

67.90 €

In stock 1 pcs

Buy with code ALZADAYS10DE 61.11 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Operating System - MS Windows Server intended for 1 device(s), license not portable, version in EN, appropriate for businesses, intended for PC, compatible with Windows operating...

Microsoft Windows Server CAL 2025 - 5 Device CAL (OEM)

182.90 €

In stock 4 pcs

Buy with code ALZADAYS10DE 164.61 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Operating System - MS Windows Server intended for 5 device(s), license not portable, permanent license, version in EN, appropriate for businesses, intended for PC, compatible with...

Microsoft Windows Server Standard 2025, x64, CZ, 16 core (OEM)

987.90 €

In stock 1 pcs

Operating System - MS Windows Server intended for 1 device(s), license not portable, version in CZ, install through CD/DVD, appropriate for businesses, intended for PC, compatible...

Microsoft Windows Server Standard 2025, x64, EN, 16 core (OEM)

949.90 €

On the way 1 pcs

Expected 19/06/2026

Buy with code ALZADAYS10DE 854.91 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Operating System - MS Windows Server intended for 1 device(s), license not portable, permanent license, version in EN, install through CD/DVD, appropriate for businesses, intended...

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Best sellers, best operating Systems for Business

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