Consider upgrading to Windows 10 or Windows 11 (if your hardware supports it) for ongoing security updates. If you need an older OS for specific software/hardware compatibility, verify your license allows it and download only from Microsoft.
Would you like the direct link to Microsoft's software download page where the Windows 8.1 Media Creation Tool can still be found? descargar windows 8.1 iso
I notice you're asking about downloading a Windows 8.1 ISO ("descargar" means "download" in Spanish). Consider upgrading to Windows 10 or Windows 11
Here's what you should know: