A family of Microsoft word processing software products for creating web, email, and print documents.
Take a look in your User Templates folder (C:\Users[User Name]\AppData\Roaming\Microsoft\Templates) for a Normal.dotm.old or Normal15Pre.dotm template. One or the other of those will be your original Normal.dotm template. With Word not running, you can delete, or better rename the Normal.dotm template that is in that folder to say BadNormal.dotm, and then rename whichever of Normal.dotm.old or Normal15Pre.dotm to Normal.dotm and your macros should be restored.
If you do not see the AppData folder: -
In Windows 7, - In Windows Explorer, click on the Organize drop down and then on Folder and search options and in the Folder Options dialog, go to the View tab and select the item "Show hidden files, folders, and drives". While there, also uncheck the box for "Hide extensions for known file types".
In Windows 8, 8.1 or 10, in the File Explorer, click on Options on the View tab of the ribbon and then on the View tab in the dialog that appears and select the item "Show hidden files, folders, and drives". While there, also uncheck the box for "Hide extensions for known file types".