2. One or more Sub-directories appears to be lost or damaged
3. The Hard Drive was formatted accidentally.
4. The drive spins up , but the system fails to recognize.
5. SYMPTOMS OF ERROR MESSAGE.
1. SYMPTOMS
a. The Hard Drive is completely dead.
b. Even if the drive activate, the computer will not boot from hard drive.
c. Hard drive performance appears to be slowing down.
d. A “No fixed disk present” error message appears on the monitor.
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2. One or more Sub-directories appears to be lost or damaged
a. If data in either root directory or file allocation table is corrupt,one or more sub-directories might be inaccessible by the drive.
b. Try repairing the drive’s structure.
c. Use CHKDSK OR SCANDISK (with dos 6.2 ) to check the disk’s directory structure for problems.
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3. The Hard Drive was formatted accidentally.
a. A high level format does not actually destroy data, but rather it clear file names and locations kept in the root directory & FAT - this unable dos to find those files.
b. Use a utility, such as UNFORMAT to reconstruct the root directory and FAT data contained in a mirror file.
c. As this is not always the possible process, you might be unable to recover the files.
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4. The drive spins up , but the system fails to recognize.
a. Check the signal connector.
b. Be sure that the interface signal cable is inserted properly.
c. Check any drive jumpers and see that the primary (master) drive is configured as primary & secondary (slave) drive is configured as secondary .
d. For SCSI drives see that each drive has unique ID setting & check the SCSI bus is terminated properly.
e. If CMOS is configured properly ,check the partition Be sure that there is atleast one DOS partition .
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5. SYMPTOMS OF ERROR MESSAGE.
a. A “sector not found” message appears on the monitor.
b. A “Bad or Missing Command Interpreter” error message appears.
c. An “Error reading drive C:” error message appears.
d. A “Hard disk controller failure” message appears .
e. “Disk boot failure” or “Non system disk” or “No ROM basic- SYSTEM HALTED” error message appears.
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