Is genuine windows safe?

Genuine products are not necessarily safer than pirated products. Genuine and pirated products have nothing to do with security or not.

There are some things that others can't do for you

Using computers well depends on knowledge rather than antivirus software. If you have a certain knowledge of computer use and make a good backup, you don't need to install any antivirus software on your computer.

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Because piracy is more insecure, malicious plug-ins and viruses may be bound.

Because the pirated installation method is generally unconventional, the system installed in this way is prone to compatibility problems; Due to the installation of some other software, some modifications have been made to the original system, and some inexplicable failures that did not appear in the original version are more likely to occur in use.

Because genuine products can also be used for free.

Because of some reasons I don't know for the time being