If Windows 10 isn't the radical overhaul you'd hoped it would be and you're left pining for the old times, you can still step back in time and go back to a Windows 7 or 8.1 life. You'll have a month to revert back to the older version, so make sure you're definitely sure this is what you want to do.
The first step is to back up anything you've downloaded or saved during the time you've had Windows 10 running. You could use an online cloud storage service like OneDrive or Google Drive or go old school and opt for an external or USB drive.
Go to the Windows Start menu and click the Update & Security option. Select Recovery and you should see an option to Go Back to Windows 7 or 8.1, depending on what you had last running on your device.
Once you've filled in a blue form saying why you've had enough of Windows 10, you can begin the very simple process of rolling back.
Depending on how much you've managed to install during the brief Windows 10 opening window, this could take a few minutes or a little longer.