With Windows 10, Microsoft included plenty of accessibility tools to make the operating system more accessible to people with a variety of disabilities. Go to the Ease of Access hub if you're having trouble with any aspect of Windows 10.
If you're using an older computer (or a tablet), having vibrant Live Tiles may drain processing capability that could be put to better use elsewhere (not to mention battery life with a slate).
Taking a screenshot on a Mac is a simple process. However, on a Windows PC, things are a little more complicated. On Windows 10, you can take a screenshot of the entire screen by pressing the PrtScn (PrintScreen) key, though you'll have to paste the image into an app afterwards (like Microsoft Paint, where it can then be saved out as an image file, or Word, where it will appear in your document).