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One fine day you start your PC and get messages that say,”Book Disk failure”. The problem is that the hard disk is detected but the OS does not load. The system may get stuck in the second screen during the booting process or the OS might display an error message and refuse to load. Such situations can be trouble some as they leave you with very few troubleshooting options

One of the common problems in dual boot systems is of the boot loader getting corrupted. For example, you have a system running Windows XP and Linux using Lila as boot loader. If Lila gets corrupted, you can not boot into either OS.When this happens, you have to boot into the system using some other media, such as a boot floppy or the Windows Dafter booting go to the command prompt, type ‘fdisk/mbr’ and press [Enter]. Note that if you use Windows 2000 or XP, boot into the recovery console and give the command ‘fixmbr’ to clear the MBR. Unfortunately, after you restart, it will boot to Windows directly, without any option of booting into Linux. You will have to restore LiLo again from your Linux CD, or reinstall boot loaders such as XOSL from Windows.

If your problem persists, or if you never used a boot loader, than boot into the system from a boot floppy or the Windows CD.Windows 2000 and XP users should boot into the recovery console. Go to the command prompt and give the command fdisfk/mbr’and then give the command ’sys C’. This clears the MBR, and makes the bootable partition C, Windows 2000 and XP users should give the command ‘fixmbr’ and’ fixboot’ C: to do the same. Then restart the system to boot into the OS.

If you still have trouble, you might have a virus on your PC’s boot sector .It is difficult to confirm an infection without a virus scan. Thesymptoms of an infections-applications slowing down or many unrecognized files appearing in the system-should give you a clue. For example Windows 98 and Me users might see a message during boot up that says,” No valid FAT on boot drive” this is caused due to a boot sector virus called stoned Monk. Even reinstalling Windows might give you an error message that says, “Your computer already has an operating system installed”. Then best solution is to connect the hard disk to another system, and scan with an anti virus tool. You can also create a rescue disk for the anti virus tool and scan the system using it.

If nothing mentioned above seems to work. Then you have a serious problem at hand. Connect it to some other system and try to access the data if you can, then your boot record is damaged. Otherwise the service center beckons.

Ravi chamria is a webmaster, for more computer related articles please visit
at Computers-and-Technology.

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There are so many reasons why your hard disk may crashed:

(1) It may be caused by mechanical or physical problem such as the spindle motor system failure. This failure is usually caused by over-heating. The activity light flashing that you see on your CPU (central processing unit) indicates that its head moves to different tracks. If this movement fails, it can no longer read or write data. Remember, a hard disk is a hardware component, not a software. It is a magnetic device use to store data, it reads and writes data as it spins.

(2) Failure of logical system (the logical partitioned drives assigned as C, D, E, F, G) may be caused by and not limited to corrupt system files, corrupt firmware, registry components and virus infection. Spywares, adwares & all other malicious files may also cause your hard disk to crash.

HINTS:

(1) If you see the activity light flashing but the computer does not boot, the case may be, your files is still intact on the hard drive but becomes inaccessible — this may be because of logical system failure. Try booting through a floppy disk or use the start-up disk that came with the system.

(2) If you don’t see any activity light flashing on the CPU and that the system can not start up (ofcourse after checking all power cables are “on”) then it is likely of mechanical problem. And notice that if the system BIOS (Basic Input/Output System) can no longer recognize the hard drive, then it is the physical/mechanical system that failed.

The good news is, usually, in today’s technology on hard disks, if this problem occurs it normally will alarm you and warn you before it will totally fails, so you could get that chance to immediately back up your files. And there are also many data recovery tools available in the market today. But at times, it is cheaper to replace the hard drive than to fix it (unfortunately).

TIPS & TRICKS TO AVOID THIS DISASTER TO HAPPEN:

1. Keep your hard drive healthy by performing defragmentation at least once a week (others prefers once every two weeks)

2. Run your anti-virus program everyday! Run spyware/adware removal tool at least once every week (there are many available free to download). Keep updates with all these tools and programs too! Turn on your firewall & pop-up blocker, it protects you from intruders!

3. Remove all unknown emails, clear your bulk and spam emails immediately.

4. Delete all internet temporary files (including all offline files)

5. Install all necessary updates on your computer

6. Be very careful in downloading files from different sites (firmware usually fails because of this)

7. The last but not the list - take “backing-up” your hard drive on a removable disk or tape as a serious task for you to do at least everyday or once a week especially if you are using it for business purposes!

The Author: Pinky Mcbanon is a Computer Engineer and a Medical Biller/Coder.
She shares her technical expertise with http://www.fix-exchange.com and http://www.medclaimsplus.com

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