Beginner Friendly and Easy to Use
Windows OS is one of the simplest desktop OS available today. Its graphical user-friendliness is exceptional. Though Windows has a relatively minimal learning curve, Linux distros like Ubuntu, Manjaro, Linux Mint, etc. are striving to improve the user experience that makes the transition from Windows to Linux become smooth and easy.
Linux distros allow the user to choose one of the various desktop environments available: Cinnamon, MATE, KDE, Xfce, LXDE, GNOME, etc. If a Windows user is looking to migrate to Linux, WINE (Wine Is Not an Emulator) can be installed to have a feel of Microsoft Windows on a Linux system. Also do a live boot in distributive with KDE, MATE or Xfce, because it comletely follows Windows' design with some differences. If you are looking for something simple and more like MacOS then take a look at GNOME (I've used it for a year).
It Is Completely Free
The most obvious advantage is that Linux is free whereas Windows is not. Windows license cost is different for both desktop and server versions. In the case of Linux OS either it can be desktop or server, distro comes with no cost. Not only the OS even the related applications are completely free and open source, including some office stuff like LibreOffice (free open source office bundle) that I enjoy more than MS Word.
For personal use, a single Windows OS license fee may appear inexpensive but when considered for business, more employees mean more cost. Not only the OS license cost, but the organization also needs to be ready to pay for applications like MS Office, Exchange, SharePoint that run on Windows.
Linux is more reliable when compared to Windows. Linux will rock with its top-notch design, built-in security resulting un-parallel up-time. Developers of Linux distros are much active and release major and minor updates from time to time.
Traditionally Unix-like systems are known for running for years without a single failure or having a situation that demands a restart. This is an important factor especially choosing a server system. Definitely Linux being a UNIX-like system, it will be a better choice.
Linux can be installed and used it as a desktop, firewall, a file server, or a web server. Linux allows a user to control every aspect of the operating systems. As Linux is an open-source operating system, it allows a user to modify its source (even source code of applications) itself as per the user requirements.
Linux allows the user to install only the desired software nothing else (no bloatware). Linux allows full freedom to install open source applications its vast repository. Windows will bore you with its default desktop theme whereas with Linux you can choose from many desktop themes available.You can breathe fresh air after choosing a Linux distro from an available list of Linux distros.
With USB live-mode option, you can give a try to test a Linux distro before you finalize one for you. Booting via live-mode does not install the OS on a hard disk. Just go and give a try, you will fall in love.
Linux is Everywhere
Yes, Linux is everywhere. From the smallest device to the largest supercomputer. It can be a car, router, phone, medical devices, plane, TV, satellite, watch or school tablet, Linux will be there.
The inventor Linus Torvalds himself would not have imagined about this kind of success when he was writing the Linux Kernel first time. Kudos to Linus and Stallman for their contribution.
If you still have old laptop, PC or netbook, it is time to bring it alive now. Because some lightweight Linux distros will give your hardware a second life. It is so easy to install and officially download via Torrent within 5 minutes for (new distros, but older versions are so light: about 0.5 to 1 GB for ISO image).