there are many ways to install ubuntu on your computer, such as installing ubuntu from usb, cd, installing ubuntu running in parallel with windows, installing it
linux users want to run windows software on linux, whereas windows users want to use linux software. even if you are looking for a better development environment, more powerful
you want to find a solution to try ubuntu but don't like the idea of creating a partition, using the cd drive directly, or not having enough resources to run a virtual machine.