Based on the provided text and key, I understand that you're looking for instructions on how to install Draw.io Desktop version 21.7.5 for free.

Here's a step-by-step guide to help you download and install Draw.io Desktop:

Step 1: Go to FileHorse

Open your web browser and navigate to the website 'FileHorse'(https://www.filehorse.com/download-draw-io-desktop/).

Step 2: Choose the correct version

On the Download page, select the correct operating system (Windows, macOS, or Linux) that matches your computer's specifications. You can also choose the bit version (32-bit or 64-bit) based on your system requirements.

Step 3: Download the installer

Click on the 'Download' button to begin downloading the Draw.io Desktop installation package.

Step 4: Run the installer

Once the download is complete, run the installer by double-clicking on the downloaded file. Follow the prompts to install Draw.io Desktop on your computer.

After installation, you should be able to access Draw.io Desktop without an internet connection. This is useful for creating diagrams where data protection is important.

If you encounter any issues during the installation process, feel free to ask, and I'll do my best to assist you.

Instal Draw.io 21.7.5 free