Microsoft Word, the word processing component of Microsoft Office, will ask you if you would like to save the changes you've made to a document even if you haven't manually done this yourself. However, if you accidentally clicked "No" when this option appears on your screen or if the power goes out before you could save your document, there are a few ways you can try to recover your file.
Open the "Start" menu and type the name of your document in the search dialogue box and press the "Enter" key.
Double-click the document to open it if it appears.
Type ".docx" in the search dialogue box if you cannot find your file. All of your Microsoft Word files will be displayed. Search through this list of files to find your document, if it is available.
Open Microsoft Word, click on the File menu and select "Open."
Click "All Files" in the "Files of Type" list.
Search for files with ".wbk" near the end. These files are backup files that are created if you have the "Always create backup copy" option turned on in Microsoft Word.
Open the backup copy of your document.
Open Microsoft Word, click the File menu, then click "Recent."
Click "Recover Unsaved Documents."
Locate the document that you forgot to save and double-click it to open it.