Windows 10 has many features which makes it very simple and easy to multi-task as well as work with multiplee windows simultaneously.
Snap lets you resize windows instantly which is especially convenient when you need to see two windows side by side. In order to do this click and drag the desired window to left or right till the cursor reaches the edge of the screen, then release the mouse. The window will snap into the place and in order to unsnap a window, just click and drag the window down.
Flip features is used for switching between open windows. In order to do this you are required to press and hold Alt key on your keyboard and then press the Tab key. You should continue pressing the Tab key until the desired window is selected.
Task view is pretty much similar to Flip but it will work differently. In order to open Task view you need to click the Task view button located near the bottom-left corner of the taskbar. You can also press Windows key+Tab on your keyboard. All of your open windows will appear and you can easily click to select any window you need.
Instead of keeping everything on the same desktop you can easily move various windows to a virtual desktop in order to get them out of the way. This feature was not available in older versions of Windows, and it is especially handy for managing loads of windows simultaneously. In order to create a new desktop, open the Task view and then select New desktop near bottom-right corner. Once the multiple desktops are created you can use Task view in order to switch between them. You can also move windows between the desktops. In order to do this open the Task view and then click and drag a window to the desired desktop. In order to close virtual desktop you need to open Task view and then click the X located at the upper-right corner of any desktop you need to close.
Showing the desktop:
If you have got loads of windows open at the same time it will be very difficult to see the desktop. When this will happen you can click the bottom-right corner of the taskbar to minimize all the open windows. You need to click it again to restore minimized windows.