Win7 didn't have any viruses. It was possible to catch viruses while using it, as is true for all operating systems, especially Windows. I am pretty confident that Windows 7 did not ship with any viruses.
OTOH, careless users of Win7 allowed it to gather quite a few during use.
> No Windows platform is safe.
No mainstream platform is "safe". There are some that are less prone to getting infected, such as Linux and MacOS. But it's foolish to think that there is any operating system in widespread use that you don't have to be careful with and constantly aware and on guard.
It's like cars. Some models are "safer" than others in the sense that they don't have egregious design or manufacturing flaws. But to think that a "safe car" will prevent you from making fatal mistakes while driving is foolish.
It’s like cars. Some models are “safer” than others