going back to previous edition of windows after add features

[vishal pattar]

Unfortunately out of my eagerness i tried to add features to my dell laptop running windows 8.1 single language to windows 8.1 pro using a random product key . Later I faced genuine related problem.....now I want my previous edition of windows that came with my laptop oem....so what can i do?

 

[rgd1101]

backup your data and do factory reset.