To start the installation, download the Raspberry Pi Imager from the official Raspberry Pi website. Insert the SD card (min. 8GB) and select Ubuntu Server 20.04 LTS from the list of the available operating systems. Once the write and verify is complete, insert the SD card in the raspberry pi, connect the HDMI, network cable, and power source.
Microsoft has made a great effort to allow Linux and native Linux apps to run on Windows 10. Enabling Subsystem for Linux will allow you to run Linux OS and Linux native apps on top of Windows 10. For more technical details about access to Windows kernel to run Linux and/or Linux native apps, please consult Google.
In this how-to I will show you how to install and configure Ubuntu Server 12.04 LTS, Apache web server, PHP and MySQL database server and backup to Google Drive (grive). Ubuntu is one of the most common version of the linux server OS on the web today, with almost 35% market share. It is light and easy to manage, even for the novice. After all, you need to know about 10-15 commands to get you started with Linux OS. The rest of the knowledge will be picked up on the way. The best way of learning is learning by doing.