[Maximum]

1. Type "Settings" in the search bar next to the windows icon.
2. Select "Update and Security"
3. On the left side, you'll see multiple options but the one we're looking for is "Recovery"
4. This will open up the recovery options, you'll normally see 3 options: Reset this PC, Go back to (7 or 8.1), Advanced startup
5. Click 'Go back to previous version of Windows’
6. It'll ask for feedback about why you're going back to your old version of windows.
7. Once you've given the feedback, click 'Go back to (7 or 8.1 - whichever version you had)

Note:

• Make sure you remember your password to the old version - only if you used one.
  
• You can only rollback if the "Windows.old" folder still exists.
  
• This method is only good for 30 days after installing Windows 10.
  

[mothered]

Very few users are aware of this functionality.

Much appreciated, thanks.

[BlueScreen]

..or you know just keep Windows 10 since you don't wear a tinfoil hat because you know its bad for your hair as scientifically proven in this article.