Hello Dirk,
Microsoft does allow ISO downloads for Windows 11, but the availability can vary depending on your region and the network you are connecting from. The error you are running into with Starlink in Paraguay is not related to VPN use but rather to Microsoft’s content delivery restrictions. The official ISO download page checks your geolocation and sometimes blocks direct access in regions where Microsoft distributes Windows only through OEM channels or the Media Creation Tool.
The supported way to obtain the ISO is through the Windows 11 Download page on Microsoft’s site. There are two options: the Media Creation Tool, which builds bootable media directly, and the direct ISO download link. If the ISO option is not appearing for you, it is because the CDN is serving a restricted experience based on your location. In that case, the workaround is to use the Media Creation Tool, which does not rely on region‑specific ISO links and will generate the installation media regardless of location.
If you require the raw ISO file for deployment purposes, the only supported method is to access the Microsoft download portal from a region where ISO links are available, or to use the Volume Licensing Service Center (VLSC) if you have enterprise licensing. VLSC always provides ISO images independent of geography.
In short, the limitation you are seeing is regional. The Media Creation Tool will still allow you to reinstall Windows 11 cleanly, and if you need the ISO itself for enterprise deployment, you should retrieve it via VLSC or from Microsoft’s official download portal using a network endpoint that is not restricted.
I hope you've found something useful here. If it helps you get more insight into the issue, it's appreciated to accept the answer. Should you have more questions, feel free to leave a message. Have a nice day!
Domic Vo.