Operating Systems - Page 17 | Back to the Office

For Business My Account

The operating system is the program that gets started first when you switch on your computer or server. All other applications depend on it for correct operation. Some examples of popular operating systems are Microsoft Windows, Mac OS and Linux.

Lenovo Windows Server 2019 Client Access License (CAL) 10 license(s)

Lenovo Windows Server 2019 Client Access License (CAL) 10 license(s)

Lenovo Windows Server 2019 Client Access License (CAL) 10 license(s)

£313.99

Lenovo Windows Server Datacenter 2019 Downgrade Microsoft Windows Server 2016 1 license(s)

Lenovo Windows Server Datacenter 2019 Downgrade Microsoft Windows Server 2016 1 license(s)

Lenovo Windows Server Datacenter 2019 Downgrade Microsoft Windows Server 2016 1 license(s)

£21.99

Lenovo Windows Server Standard 2019

Lenovo Windows Server Standard 2019

Lenovo Windows Server Standard 2019

£933.99

Lenovo Windows Server 2016 Standard ROK Reseller Option Kit (ROK) 1 license(s)

Lenovo Windows Server 2016 Standard ROK Reseller Option Kit (ROK) 1 license(s)

Lenovo Windows Server 2016 Standard ROK Reseller Option Kit (ROK) 1 license(s)

£630.99

Lenovo Windows Remote Desktop Services CAL 2019 Client Access License (CAL) 5 license(s)

Lenovo Windows Remote Desktop Services CAL 2019 Client Access License (CAL) 5 license(s)

Lenovo Windows Remote Desktop Services CAL 2019 Client Access License (CAL) 5 license(s)

£697.99

Lenovo Windows Server 2019 Client Access License (CAL) 5 license(s)

Lenovo Windows Server 2019 Client Access License (CAL) 5 license(s)

Lenovo Windows Server 2019 Client Access License (CAL) 5 license(s)

£210.99

Lenovo Windows Server Standard 2019 Downgrade to Microsoft Windows Server 2016

Lenovo Windows Server Standard 2019 Downgrade to Microsoft Windows Server 2016

Lenovo Windows Server Standard 2019 Downgrade to Microsoft Windows Server 2016

£21.99

Microsoft Windows Server Standard 2019 1 license(s)

Microsoft Windows Server Standard 2019 1 license(s)

Microsoft Windows Server Standard 2019 1 license(s)

£1,719.99

Microsoft Windows 11 Pro for Workstations 1 license(s)

Microsoft Windows 11 Pro for Workstations 1 license(s)

Microsoft Windows 11 Pro for Workstations 1 license(s)

£253.99

Microsoft Windows 11 Pro 1 license(s)

Microsoft Windows 11 Pro 1 license(s)

Microsoft Windows 11 Pro 1 license(s)

£175.99

Microsoft Windows Server 2025 Standard 16-Core OEM APOS Licence (Medialess / No DVD) - EP2-25387

Microsoft Windows Server 2025 Standard 16-Core OEM APOS Licence (Medialess / No DVD) - EP2-25387

Microsoft Windows Server 2025 Standard 16-Core OEM APOS Licence (Medialess / No DVD) - EP2-25387

£1,037.99

Microsoft Windows Server 2025 Datacenter 1 license(s)

Microsoft Windows Server 2025 Datacenter 1 license(s)

Microsoft Windows Server 2025 Datacenter 1 license(s)

£658.99

Previous

1 … 15 16 17 18 19 … 21

Next

Contact Us

Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.

Please note that the following products are not regulated by the FCA: Pay in 3 instalments. Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply.

PayPal Credit and PayPal Pay in 3 are trading names of PayPal UK Ltd. Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH

Klarna Bank AB (publ) is authorised and regulated by the Swedish Financial Supervisory Authority. Deemed authorised by the Prudential Regulation Authority. Subject to regulation by the FCA.

© 2026 Back to the Office Limited | Registered in England and Wales: 13983827. VAT: GB428009508 | Registered in Ireland as Back to the Office Retail Limited: 785511.