Installing WordPress for second website

Its another domain name or same domain but different directory?

Yes, you need a second copy of WordPress and a new database also.

Yes download latest version(always recommend) of WordPress and also create a new database, new mysql user(optional) for that site.

The other option is to enable multisite so that you only have one installation for an unlimited number of separate blogs.

If you are using cPanel you can create a pointer to the folder with additional WordPress installation. Setup additional database and that’s it.

You should download latest version of wordpress from https://www.ads-software.com/ . after that again install.

Additionally, if you want to duplicate your first website, you can easily use plugins like ‘duplicator’ etc.