Press Windows Key + S and type File Explorer.How do I find a missing folder on my computer? Check the File Path Before Saving Your File.How to Find Lost or Misplaced Files and Documents on Windows Replies (1) The most likely default is under “This PC” – Documents, but if you open Notepad and then choose File – Open it will likely be first looking in the last location that you opened or saved a file. 7 How do I restore notes on my computer?.