Legacy Update Help
Does this make old versions of Windows secure enough for daily use?
No. Legacy Update is intended to help you install security patches Microsoft previously released for your operating system, in addition to enabling access to functionality that has become inaccessible due to modern internet security requirements. It is not a replacement for a currently supported operating system, which includes the latest security advancements, and regularly receives fixes for newly discovered flaws.
Operating system security evolves over time - every version of Windows comes with new advancements in security that can’t simply be applied as an update on top of a prior version. Windows 11 is more secure than Windows 10; Windows 10 is more secure than Windows 7; etc.
Current operating systems you should consider switching to for daily use would include Windows 11, Windows 10, or a current Linux distribution.