As a staunch Windows OS supporter, it's been quite a few years since I've installed a Linux distro for myself to experiment with. Why? The installation process (at the time I experimented last time) was complicated and frustrating, as was just using Linux itself.
So, after reading a few questions and comments here and there, I decided it was time to give it another shot. I first downloaded and set up an Ubuntu Studio ISO in an Oracle VM Virtualbox VM. I was suitably impressed with both the installation and relative (and intuitive) ease of use.
Encouraged by that result, I decided to try another Linux distro called ChaletOS which claimed it would give newbies like me an easier transition to Linux by giving me a familiar GUI interface to Windows 7. Again, I wasn't disappointed. Linux distros have indeed come a long way since I last experimented.
Installation was an absolute breeze and puts both Windows 7 and Windows 10 installers to shame! Ease of use? Fantastic, especially with the ChaletOS build. I think I'm starting to understand why Linux tends to have such a 'cult' type following.
I've still got a lot to learn and experiment with, but my first impressions are nothing but positive. If you're in a similar position to me, I'd encourage you to give Linux another try. By setting up in a Virtual Machine, you have nothing to lose and potentially, much to gain.
In the registry at Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services, is shadow present and set to 2 or 4? That means, your pc might be setup for shadowing without user consent, which mirrors your screen, without you even knowing it.