Once you have the legitimate ISO from Microsoft, you can install Windows 10 Home on any PC, even without a license (it will just have a small watermark in the corner).
If you need to reinstall Windows, set up a new SSD, or create a recovery drive, you will need the Windows 10 Home ISO file . But here is the golden rule: Never download an ISO from a random torrent site or third-party forum. Those files often contain malware, spyware, or modified code that can steal your passwords.