Hi Augustine,
I'm not sure about the specific steps you took for the link, especially when you mentioned the installation continually "downloading." This is not a typical behavior.
To assist you, here's the direct link to the installation: QGIS-OSGeo4W-3.28.13-1.msi. After downloading the installation file, follow the instructions you previously mentioned that you've already checked. During the installation, there shouldn't be any additional downloads, as this link provides the complete stable version of QGIS, currently version 3.28.13.
I hope this guidance helps. Let me know if you encounter any further issues.
Best regards,
Oualid