Please follow this tutorial to download, install, and activate Visio 2021.

1: Download the program from the following official link: https://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/media/es-ES/VisioPro2021Retail.img

2: Navigate to the downloads folder and right-click “Mount”

After clicking Mount, a virtual CD will be added to Windows Explorer. Go to "This PC" and click the "DVD Drive" with the Office logo to open the folder where the installer is located.

Once inside that “DVD Drive”, you must open the folder “Office” and open the program “Setup64” or the program “Setup32”

If you have a 64-bit system, select “Setup64”
If you have a 32-bit system, select “Setup32”
If you are not sure, select “Setup64”

As the following image shows:

Once you open the installer, it will begin installing Office on your PC.

Installing the program can take from a few minutes to over an hour, depending on the speed of your hard drive.

Once installed, you must open Visio to activate it. When you open any Office program for the first time, you'll see the following message:

In the box of “Enter an Office product key” You must include the license we sent you by mail.

Type or copy the license key and then click the “Activate Office” button that appears once you have typed the license key.