Yes, you can completely replace Win10 (actually it would be easier than dual-booting), but before you completely jump ship, I suggest you try running off of a live USB or DVD to make sure that all the hardware in your computer works under Linux.
In particular, the touchscreen and automatic screen rotation when the display is rotated may or may not work. I would also check to make sure the battery doesn't drain way faster than it should. (The kernel can sometimes force the CPU to run at the highest frequency even when it isn't needed)
But that way, you can try it without making any changes whatsoever to your computer.
Also, keep in mind that Windows software will not run natively in Linux. There is a lot of software for Linux, though. For example, Google Chrome is available for Linux, as well as Libreoffice (a free alternative to MS office). There is a compatibility layer called WINE that will allow you to run some Windows software, but it is quite buggy and not a great experience.
Assuming that you're not a power user though, and you mostly just use the web browser and email, you shouldn't have any problem with finding Linux software.
Overall though, if you're OK with not being able to run Windows software, I think you will find that Linux is a lot more stable than Widnows. You don't have to reboot once a week. Some servers can even run for years before they are rebooted, and even then only rebooted to apply critical security patches.
As an added bonus - you don't really need antivirus for Linux :)
(Sure, there is Linux malware, but any software you install through
apt is scanned and is basically guaranteed to be safe, and you could always audit the source code if you wanted :D)