You have upgraded to Windows 10 and due to some reasons like your favorite apps can’t run or no driver for your hardware, it’s not a problem because you have up to 30 days to roll back the update. There is a feature on Windows 10 Update that will help you downgrade Windows 10 to the previous version, where you upgrade from.
Your data and information will not be lost while you downgrading Windows 10, but you should backup to make sure it’s safe if any issue happens when you do.
1. Go to Start Menu > Settings > Update & Security
2. Click on “Recovery” tab
3. You will see an option like: Go back to Windows “xx”. The xx number depends on your previous Windows version.
4. Click on “Get Started”.
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5. There is a window asking you about the reason why are you going back. Just select your reason and press “Next”.
Please note: You are only able to downgrade Windows 10 to the previous Windows versions if “Windows.old” directory in C:\ is not removed. It’s the place that saved data of the old Windows version.