Windows 7 is an operating system that was produced by Microsoft and released as part of the Windows NT family of operating systems. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009.It is the successor to Windows Vista, released nearly three years earlier, and it was Microsoft's operating system for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs until it was succeeded by Windows 8 and Windows RT on October 26, 2012. Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time. The last supported version of Windows based on this operating system was released on July 1, 2011, entitled Windows Embedded POSReady 7. On January 12, 2016 Microsoft ended support for Internet Explorer versions prior to Internet Explorer 11 on Windows 7. Extended support ended on January 14, 2020, ten years after the release of Windows 7, after which the operating system ceased receiving further support or security updates (with exceptional security updates being made e.g. in 2019, to address potential ransomware threats, like BlueKeep) to most users.
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Windows 8 is an operating system that was produced by Microsoft, released as part of the Windows NT family of operating systems. The product was released to manufacturing on August 1, 2012, and generally to retail on October 26 of the same year. It is the successor to Windows 7.

Windows 8 introduced major changes to the operating system's platform and user interface to improve its user experience on tablets, where Windows was now competing with mobile operating systems, including Android and iOS. In particular, these changes included a touch-optimized Windows shell based on Microsoft's "Metro" design language and the Start screen (which displays programs and dynamically updated content on a grid of tiles), a new platform for developing "apps" with an emphasis on touchscreen input, integration with online services (including the ability to synchronize apps and settings between devices), and Windows Store, an online distribution for downloading and purchasing new software. Many of these features were adoptions from Windows Phone. Windows 8 added support for USB 3.0, Advanced Format hard drives, near field communications, and cloud computing. Additional security features were introduced, such as built-in antivirus software, integration with Microsoft SmartScreen phishing filtering service and support for UEFI Secure Boot on supported devices with UEFI firmware, to prevent malware from infecting the boot process. 

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Windows 10 is a series of operating systems developed by Microsoft and released as part of its Windows NT family of operating systems. It is the successor to Windows 8.1, released nearly two years earlier, and was released to manufacturing on July 15, 2015, and broadly released for the general public on July 29, 2015. Windows 10 was made available for download via MSDN and Technet, and as a free upgrade for retail copies of Windows 8 and Windows RT users via the Windows Store. Windows 10 receives new builds on an ongoing basis, which are available at no additional cost to users, in addition to additional test builds of Windows 10, which are available to Windows Insiders. Devices in enterprise environments can receive these updates at a slower pace, or use long-term support milestones that only receive critical updates, such as security patches, over their ten-year lifespan of extended support.

Windows 10 received mostly positive reviews upon its original release. Critics praised Microsoft's decision to provide a desktop-oriented interface in line with previous versions of Windows, contrasting the tablet-oriented approach of Windows 8, although Windows 10's touch-oriented user interface mode was criticized for containing regressions upon the touch-oriented interface of its predecessor. Critics also praised the improvements to Windows 10's bundled software over Windows 8.1, Xbox Live integration, as well as the functionality and capabilities of the Cortana personal assistant and the replacement of Internet Explorer with Edge. However, media outlets have been critical of the changes to operating system behaviors, including mandatory update installation, privacy concerns over data collection performed by the OS for Microsoft and its partners, and adware-esque tactics used to promote the operating system on its release.
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https://www.microsoft.com/sl-si 
https://support.microsoft.com/sl-si/windows
https://siol.net/digisvet/nasveti/super-racunalniski-triki-in-nasveti-ki-iz-vajenca-naredijo-mojstra-432103
https://support.microsoft.com/sl-si/windows/namigi-in-nasveti-za-tipkovnico-za-windows-10-588e0b72-0fff-6d3f-aeee-6e5116097942

