O&O DriveLED 4 is a software utility to monitor the performance of your hard drive.  O&O DriveLED 4 allows you to reduce the risk of your hard drive suffered further damage because this software will tell the hard drive will die or will suffer from potential accidents.  O&O DriveLED 4 will work in the background and monitors the status of your hard disks and warns you if a problem occurs on the disk.  The software also will warn you when it’s time to back up your important data or even if necessary to replace the hard disk.