Microsoft has stopped its technical support for Windows 7 and it will no longer receive security updates. Microsoft’s decade-old OS reached end of support this month and stopped receiving security and bug fixes. Windows 7 refugees also have the option to upgrade to Windows 10 or to buy a new computer with an operating system under active support such as macOS or Windows 10. Ubuntu is also presented as a safe and robust OS with a bi-annual release model, currently used by millions of other users with support for most of the apps also available on the Windows platform.
Source: https://www.bleepingcomputer.com/news/linux/ubuntu-invites-windows-7-users-with-linux-switch-guides/