Over time, the operating system creates several restore points, which are snapshots of your computer's present state. Some restore points the Latitude E4300 creates at a set interval; these points are labeled as "system checkpoints". Others are created when a user makes some kind of change to the OS. System Restore can revert the computer to a previous state, recovering the OS in case a recent change to the system rendered the E4300 unstable. If Windows won't boot, you may be able to run System Restore from Safe Mode.
Some Dell Latitude E4300s are shipped with Windows XP, and others, with Windows Vista. Windows has its own native utilities that can troubleshoot and recover many problems with the OS. For issues that Windows can't resolve, the recovery partition -- exclusive to Windows Vista PCs -- or media discs -- exclusive to Windows XP PCs -- that are packaged with the notebook must be used. The recovery partition and media discs provide utilities designed to restore the computer to its original state.
Dell Factory Image Restore
Dell Factory Image Restore reverts the Latitude E4300 to its factory image; it erases all of the files on the hard drive, and then reinstalls the OS, the device drivers and associated Dell software. Note that this option is not available on E4300s packaged with Windows XP; this tool is exclusive to PCs running Windows Vista. The tool is stored to a small partition on the hard drive. To access the tool, press "F8" on the Dell logo screen to open Advanced Boot Options. After selecting "Repair Your Computer," the Latitude will open System Recovery Options. Dell Factory Image Restore is accessible from this menu.
Startup Repair, accessed on the same menu as Dell Factory Image Restore, detects and fixes startup issues that prevent Windows Vista from booting. If the Dell Latitude E4300 won't load the operating system, Startup Repair will attempt to recover or restore the associated boot files that are affecting the boot process. Unlike some diagnostic tools, Startup Repair requires no user input. The utility will automatically look for and repair any detected issues, if possible.
If your Dell Latitude E4300 came with Windows XP and not Windows Vista, you can use the media CDs to recover the operating system. The operating system CD contains an original equipment manufacturer edition of Windows XP. OEM editions are tied to the computer on which they are installed and contain proprietary software from Dell. If you boot to the CD, the Latitude will initiate the process to reinstall the OS to the computer. Note that, like Dell Factory Image Restore, this recovery method permanently erases all of the files on your hard drive.