When you again save the document, the existing WBK file is deleted, the existing document file is renamed to WBK, and the document is saved again. Since Word only does a rename to create the backup file, it is not possible to specify a different location for that file-both the document and its backup are stored in the same directory. This backup copy is nothing more than a copy of the file you opened, before you start editing it, renamed with a WBK extension. Optionally, also select the Allow Background Saves check box.Scroll down to the Save section and make sure the Always Create Backup Copy check box is selected.Click Advanced at the left side of the dialog box.In Word 2010 and later versions, display the File tab of the ribbon and then click Options.) (In Word 2007 click the Office button and then click Word Options. Word allows you to always create a backup copy of documents if you follow these steps:
