There is not just one Linux and some versions are best left to the pros. Other versions ("flavors" in Linux lingo) are as user friendly as Windows. I prefer Ubuntu but many former Windows users prefer Linux Mint which can be configured to strongly resemble Win7. The Linux learning curve is similar to learning how to drive a new car after many years of driving an old, comfortable one. The steering wheel and brake pedal are where they've always been but the heater controls are a little different. You cope.
Almost all hardware is plug-and-play and that really isn't much of a consideration. Just last week I had to install a driver on my Win7 laptop for an OBD2 (car onboard diagnostics). Yep, it even happens with Windows. Some software just wasn't meant to run on Linux so any proprietary Windows software may be a problem. Some of the problem software will have a work-around and some will be shitouttaluck. All common software will have free and (usually) very high quality Linux alternatives. Adobe Reader fits in this latter category. If you're a gamer you probably better stick with Windows.
All you need is a USB memory stick and you can try as many flavors of Linux as you please. It won't cost you anything and when you eject the memory stick there will be no sign that it was ever there. If loading a Linux operating system onto a memory stick is beyond your comfort zone you probably ought to forget about Linux. Loading a Linux operating system onto your hard drive is doable even for most who think that it is beyond them. Beware: WHEN YOU DO HAVE A PROBLEM WITH LINUX YOU WILL ALMOST CERTAINLY HAVE TO FIX IT YOURSELF. I have seen where posters have offered to mentor Linux newbies; that ain't me!
I currently have a desktop computer with complete Win7 and Ubuntu 16.04 operating systems and a laptop with complete Win7 and Linux Mint 17.2 operating systems. It is fairly common among Linux users to have multiple operating systems on the same computer. Used Windows machines run very well on Linux and can be bought very inexpensively. There is no reason to remove Windows just because you want to run Linux. Sometimes, as with my OBD2, you just have to have Windows.