7-6 TroubleshootingHard Disk Drive ProblemsThe hard disk drive error message appears on the screen. The hard disk drive has defects. Ask your dealer for help.The hard disk drive operations seem slow. The data files stored on the hard disk drive may be fragmented. Use atool such as Window’s Disk Defragmenter to defragment the files.The hard disk drive in-use indicator glows without blinking. The data files stored on the hard disk drive may be fragmented. Use atool such as Window’s Disk Defragmenter to defragment the files.Keyboard, Mouse, and Touchpad ProblemsThe keyboard does not respond. Try connecting an external keyboard. If it works, contact anauthorized dealer, as the internal keyboard cable might be loose.Water or liquid is spilt into the keyboard. Immediately turn off the computer and unplug the AC adapter. Thenturn the keyboard upside down to drain the liquid out of the keyboard.Make sure to clean up any part of the spill you can get to. Though thekeyboard of your computer is spill-proof, liquid will remain in thekeyboard enclosure if you don’t remove it.The numeric keypad is disabled. Make sure that the Num Lock is switched on. (Check if the Num LockIndicator glows or not.)The external keyboard does not work. Make sure that the keyboard cable is properly connected.The USB mouse does not work. Make sure that the mouse cable is properly connected.
