Type: Posts; User: Midknyte
I think you mean a factory reset. https://www.youtube.com/watch?v=TaL0L9zqnx8
What site are you talking about? Did you try Lenovo first? https://download.lenovo.com/UserFiles/UserGuide/en/User's%20guides%20and%20manuals/A1-07/A1-07_EN_%20HTML/EN%20No%20scroll/contents.html