hard disk easily. If there is a problem with the hard disk, it means that the data may disappear. How to fix the hard disk? Moreover, the hard disk is more prone to various problems than other accessories in the computer, so it is particularly important to master various hardware failure solutions. Below I will introduce you to several common hard disk failure solutions. Hard disk master boot record repair failure performance a normal use of the hard disk, start the computer on a certain day, when the hard disk is detected, prompt "Disk boot failure, Insert system disk and press enter", and then stop the boot, only insert a boot disk Only then. Solution In general, this kind of error message appears, under the premise of ensuring that the hard disk hardware is not faulty, so many hard disk master boot records are damaged. For example, the destruction of some viruses, errors in operations, etc. can cause damage to the hard disk master boot record. To fix the hard standby master boot record failure, it is not difficult and can be solved from multiple angles. The DOS command method finds a boot disk containing the FDISK command. After booting the system, execute "lddisk/MBR" at the command prompt, which can be used for repair. However, it should be noted that the use of the Fdisk command is only suitable when the primary boot record is corrupted by the boot sector virus and the primary partition table is not corrupted. Fixmbr repair friends familiar with the DOS operating system must remember that there is a gadget on the DOS platform dedicated to refreshing the main boot sector record, which is Fixmbr. For this example, we can save the Fixmbr download on a floppy disk and boot the system with a floppy disk to execute Fixmbr. In this way, the command will automatically check the MBR structure. If an error is found, it will ask if it is repaired. Press the “Y” command to confirm, then it will search for the partition and prompt whether to modify the MBR. Also answer “Y” start repairing. If there is a crash in the process of using Fixmbr repair, you need to enter the BIOS and select “Advance BIOS Features”, and set “Anti-Virus Protection” to “Disabled”. Tip: If you don't have a friend with the Fixmbr program, you can use the Windows XP installation CD to launch the installer. In the menu that appears, select “To use the Recovery Console to repair the Windows XP installation, press the R key” (Figure 1). Press the R key to enter the Windows XP faulty console, then type "Fixmbr" in the command prompt and fix it after execution. Rescuing the hard disk file allocation table and the root directory table failure performance The hard disk file allocation table and the root directory table information are lost, the hard disk file is lost, and the file name, file storage location, file size and other information cannot be understood. Solution For this kind of failure, we recommend using the CHKDSK program that comes with the DOS system. It is a tool that is built by Microsoft specifically for detecting hard disks under the DOS operating system. It has a hidden parameter /F, which can be used to solve the problem. In addition, using the system's own hard disk detection command Scandisk will also have unexpected effects at certain times. For this reason, it is recommended that you wait patiently for the hard disk partition detection during the illegal shutdown and restart process. Don't be too anxious to skip the scan. Tip: The hard disk file allocation table and the root directory table store the file name, storage location, size and other information of the related file, and it does not save the specific file content. When we read the file, the system first obtains the relevant storage location and size of the file from the file allocation table and the root directory table, and then reads the contents of the related file from the data area. Recovery is deleted by the partition. I believe that this fault does not need me to say more, because the more commonly used partitioning tool is Fdisk, because the tool is more complicated to use, for the rookie, the partition operation is often deleted. Solution To solve this problem, there is a premise that no other partition operations are performed after the partition is deleted by mistake. Only when this condition is met can the recovery be performed. First, execute the FDISK partitioning program, and re-establish a new partition. The created partition should be consistent with the deleted partition size and location. After the partition is completed, restart the computer and execute “ld_;Format E:/u/q” under DOS command, where E is the partition drive letter after being deleted. Executing this command, the program will give a warning message to remind you that if formatting will lose all programs, select YES to continue here, this time the program will tell you that you can't quickly format and ask if you want to "completely format" ”, Select NO to end. After formatting this way, you will try to access the deleted partition, and you can already view the contents. Tip: The reason why this method succeeds is mainly because we added a quick format parameter /q to the Format, and this parameter cannot be applied to the hard disk that was formatted for the first time after partitioning (that is, after it has to be completely formatted once) , second, third … … can use quick format). And we know that the crime is to make the system mistakenly think that we have formatted. After deleting the partition that was accidentally deleted, I still recommend that you back up the restored partition contents to another place, and then perform the re-execution of the formatter again. Fixing the zero track failure failure The hard disk cannot be started. It cannot be used when formatting with Format. ScanDisk scanDisk displays a red “B”” in the first family, indicating that your hard disk is damaged. Solution Here we recommend using the tool software Diskedit, start the computer with a floppy disk and run DE, then select the "Options" menu, perform the following "Configuration", cancel the "Read Only" option, return and then open "ldquo; Select & rdquo; menu, select the "Driver" command, in the window that opens, set "Drive Type" to "Physical", (Figure 2) and then switch to the Drive item, select Dard Disk and confirm back Main interface. Open the Select menu again, select Partition Table, you can see multiple partition information in the open window (1 corresponds to C drive, 2 corresponds to D drive … …), you only need to 1 in the partition "Beginnig Cylinder" Change from 0 to 1 and save (Figure 3). Tip: Since DE is a DOS program, you can load the driver under DOS before running DE for the menu selection and option settings. In addition, you can switch the menu by Tab, the cursor control key to select up and down, and the empty format to select/cancel related options to comprehensively complete the relevant modifications. Qiaojie hard disk "logical lock" failure performance when your hard disk is applied by some malicious programs "logical lock", you will find that the hard disk can not be started, and try to use the CD, floppy disk boot system will not work, or even The hard drive is removed as a slave to other computers and still cannot boot the system, but the BIOS can easily view the hard drive information. The solution is different for the way to unlock the hard disk logic lock. Here we introduce a simple and practical one. First, insert a floppy disk containing the DM program into the floppy disk, then enter the BIOS and set the hard disk parameter to “None”, so that you can boot from the floppy disk into the DOS operating system and run the DM program on the floppy disk. Here again repartition and perform operations on the hard disk. After the operation is completed, enter the BIOS to change the hard disk settings, so that you can solve the hard disk's "logical lock". Tip: As the saying goes, “Art High is bold”, here we introduce a simpler operation to everyone, open the chassis and remove the power cord of the locked hard disk, then start from the floppy disk, start it again &ldquo Hot plug & rdquo; on the hard drive power cord, so you can enter the hard drive to operate. Because this method is extremely dangerous, it is only executed when it is invalid as a conventional method, and it is only held by the idea of "dead right" as a living horse doctor. Fix the hard disk parameter error setting The fault is displayed on the screen during the startup of the computer, "Device error", and then prompt "Non-System disk or disk error, Replace and strike any key when ready", try to use the floppy disk to start, execute C:, prompt “Invalid drive specification”. Troubleshooting The error message can be judged from several error messages because the hard disk setting parameters in CMOS are lost or the hard disk settings are incorrect. To solve this problem, it is more convenient to solve the problem. For newer computers, go directly to CMOS and select “HDD AUTO DETECTION”, which will automatically detect the relevant parameters of the hard disk; for those without automatic hard disk detection in CMOS For friends, you need to check the relevant parameters of the hard disk and then manually modify it.