Unable to insstll

Can you share your system info please, os and hardware?

Please check the link sent by @Ann Bens 

https://community.adobe.com/t5/download-install-discussions/error-206-on-a-completely-new-pc/td-p/12704543

Remove Adobe Application Files:

• On Mac:
  • Open Finder and navigate to /Library/Application Support/Adobe.
  • Delete the Adobe folder.
• On Windows:
  • Go to C:\Program Files (x86)\Adobe (or C:\Program Files\Adobe on 32-bit systems).
  • Delete the Adobe folder.

Clear Adobe Preferences:

• On Mac:
  • Open Finder and navigate to /Library/Preferences.
  • Delete any files or folders related to Adobe (look for filenames containing "Adobe").
• On Windows:
  • Press Win + R, type %appdata% and press Enter.
  • In the Roaming folder, delete any Adobe-related folders or files.

Use Adobe Creative Cloud Cleaner Tool:

• Download and run the Adobe Creative Cloud Cleaner Tool from the official Adobe website.
• Follow the tool's instructions to clean up any remaining Adobe software traces.

Reboot Your Computer:

• Restart your computer to ensure all Adobe processes and services are stopped.

Reinstall Adobe Creative Cloud:

• Visit the Adobe Creative Cloud website to download the Creative Cloud installer.
• Run the installer and follow the on-screen instructions to reinstall Adobe Creative Cloud.

Additional Notes:

• Administrator Access: Ensure you have administrative privileges on your computer to perform these tasks.

• Backup Important Data: Before making changes, ensure you have backed up any important files and data.

• Clean Registry (Windows): Optionally, you can use a registry cleaner tool to remove any leftover registry entries related to Adobe.