Beware of Auto Save in Microsoft Project!
By Tony Zink
You may initially think that Microsoft Project’s auto save feature can be a great life saver… but beware!
When you save a project schedule in Microsoft Project — either manually or automatically — all of your ‘undo’ operations are removed.
Prior to the save:
After the save (notice the ‘Undo’ button on the Quick Access Toolbar is greyed out):