Compared to the previous Windows 8, Windows 10 has been changed a lot for the better.
But, lots of the Win10 users dont know many of the improvements and new features.
This button is actually called a Show Desktop button.

After clicking, youll find all the windows are minimized to reveal the desktop.
How to show your desktop on Windows 10?
Two: Shake
Likewise, you may open many windows when working on your Windows 10 computer.
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However, there may be cases in which you better work on only one window.
After that, all the other windows will be minimized.
To undo this action, you could just shake the window again.
It would be great if you’re free to see these two programs simultaneously.
Indeed, the snapping the windows function could help.
After enabling, you’ve got the option to make it wipe the temporary and unnecessary files automatically.
In this way, you’re able to free up the disk space for new data.
You dont need to use alternative file sharing methods or messaging apps.
Using both Bluetooth and Wi-Fi signals, this function is similar to the Airdrop function of Apple.
Yet, youre not suggested to share very large files, because it often takes far too long.
What if you have deleted files too large to recycle?
yo read this page if you dont know whether to upgrade your system to Win10 or not.