58Restoring Your Operating SystemUndoing the Last System RestoreNOTE: Before you undo the last systemrestore, save and close all open files andexit any open programs. Do not alter, open,or delete any files or programs until thesystem restoration is complete.Click1. Start .In the search box, type2. System Restoreand press .Click3. Undo my last restoration, click Nextand follow the instructions on the screen.Dell DataSafe Local BackupCAUTION: Using Dell DataSafe LocalBackup permanently removes anyprograms or drivers installed after youreceived your computer. Prepare backupmedia of applications you need to installon your computer before using DellDataSafe Local Backup. Use Dell DataSafeLocal Backup only if System Restore didnot resolve your operating system problem.CAUTION: Although Dell Datasafe LocalBackup is designed to preserve the datafiles on your computer, it is recommendedthat you backup your data files beforeusing the Dell DataSafe Local Backup.NOTE: Dell DataSafe Local Backup may notbe available in all regions.NOTE: If Dell DataSafe Local Backup isnot available on your computer, use DellFactory Image Restore (see “Dell FactoryImage Restore” on page 62) to restore youroperating system.