Click on this link to access the Microsoft Power BI download page;

On the webpage, choose your language (1) and click on Download (2);

Select the installation file you prefer (x64 (64-bit) or x86 (32-bit));

Click on Next;

Once the file is download, double-click on the file named PBIDesktopSetup.exe (or PBIDesktopSetup_x64.exe);

In the installer, choose your language (1) and click on Next (2);

Click on Next;

Accept the terms by checking the box (1) and click on Next (2);

Choose where you wish to install the software (optional) (1) and click on Next (2);

Click on Install;

After the installation, click on Finish;

You can now start using Microsoft Power BI.