Docker installation failed

While installing Docker I'm getting this error.

ubuntu@ubuntu:/usr/lib/apt/methods$ sudo docker run -i -t ubuntu /bin/bash
Unable to find image 'ubuntu:latest' locally
FATA[0000] Error: 404 page not found

Looking for any suggestions?

Can Docker run on Windows 7?

For Windows 7 (and higher) users, Docker provides Docker Toolbox, an installer that includes everything needed to configure and launch a Docker environment. Docker Toolbox allows you to deploy development containers in legacy Windows systems that do not meet the requirements of the new Docker for Windows application.

How do I download Docker for Windows?

Go to the website https://docs.docker.com/docker-for-windows/install/ and download the docker file. Note: A 64-bit processor and 4GB system RAM are the hardware prerequisites required to successfully run Docker on Windows 10. 2. Then, double-click on the Docker Desktop Installer.exe to run the installer.

I had the same problem, I fixed it by setting the proxy in /etc/default/docker.

I also had to unset the proxy in the environment variables : unset http_proxy unset https_proxy