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if it has been less than a month yes you should be able to revert it back to windows 8
click Start menu and select Settings
Click the “Update & security” icon
there should be an icon for return to windows 8
click that and follow the prompts
at the sign in screen before you log in there should be a button to restart the computer on the right hand sideif you hold the shift key on the keyboard down while selecting the restart optionit should bring you to a page with some repair options that you can try the revert should be there somewhere as well.
it should be in recovery the same as if you went to it the original way i suggested