MHDD 4.6 usage

How to Use MHDD4.6

 

Congratulations! You have entered this article. This article is the original article that the author just fixed his hard disk. This article is different from the simple introduction on the Internet. It helps you get started with MHDD quickly. First, let's extract the following online considerations: 　　MHDD 1. MHDD is a professional hard drive tool software developed by Maysoft in Russia. It has many powerful functions that cannot be compared with other hard drive tool software. It is divided into the free version and the full version paid, this article describes the usage of the free version. 2. Whether in CHS or LBA mode, MHDD can access a 512 GB ultra-high-capacity hard drive (the accessible sector ranges from 137438953472 to 286), even if you are using computers, no BIOS support or any interruptions; 3. MHDD should be run in a pure DOS 6.22/7.10 environment; 4. MHDD can directly access the IDE port without relying on the motherboard BIOS, but be careful not to use the original Intel-branded motherboard; 5. Do not run MHDD on the hard disk to be detected; 6. MHDD must record data during operation, so it cannot run on a write-protected storage device (such as a write-protected floppy disk or a CD ); -------------------------- The hard disk has a bad track: The system is not poisoned, but it is very slow to enter the system, or restart for no reason, the hard disk lights are on (not flashing), start some programs, the computer is suspended. We need to make the following preparations to achieve the 3,4, 5, 6: 1. Create a USB flash drive, which requires DOS. 2. If the hard disk is not an IDE interface, set the hard disk connection mode in BIODS (Set to compatible mode, otherwise your hard disk may not be found). It mainly refers to the SATA hard disk. And set the computer boot to USB flash drive boot. Of course, if you have another computer, it is better to install the hard drive of the computer to be tested on another computer motherboard. 3. After the USB flash drive is created, the system does not run in the hard disk of the detection, and cannot write to protect the disk. All right, the above work is done.   After the program is started, select the hard disk. If the program detects your hard disk, select the name of the hard disk to be repaired.   Step 2: Press F4. in the displayed dialog box, the entire hard disk area is detected by default. Set ReMAP (indicating that the ing is fixed, set to On, and press the Space key) to ON. Note that Remap and the last erase waits cannot be used at the same time. We recommend that you use remap to repair the hard disk. If the Loop option is ON, it will automatically detect and repair the Loop. In addition, when the cycle is five times, the position of this slice should be recorded every time the signs of Warring or Error appear. What? The point is where the hard disk is damaged. When F4. This data is required when setting Star and End. In addition, explain the meanings of MHDD parameters: From the green block and the following deeper colors, the hard disk began to have problems. The red X indicates the bad track, and the red block indicates the bad track of the hard disk. Experience: Hard Disks are mainly installed on the system, or often run programs with many bad channels. Therefore, you need to perform cyclic repair for these areas (not the entire hard disk ). Repair 8 ~ It's almost 10 times. If you find that there are too many green blocks and the hard disk is basically decommissioned, please change the hard disk. Supplement: there are few bad channels. Please use Remap. If there are too many channels, you need to use ERASEDELAYS. However, this method is not recommended for ease of use, when this parameter is used on some hard disks, the disk cannot be recognized. There are too many bad channels. Change the disk. ==================== 1. REMAP: This function reallocates space for the bad track from the hard disk. This type of bad track is marked as a Red Cross (UNC ). After the disk space is reallocated, the disk space is not reduced. This function is written into G-LIST. 2. ERASEDELAYS: This function is used to test the "bad track" of a disk that exceeds the configured response time. This function can convert some red/green blocks into normal blocks, however, it does not play a significant role in this Seagate hard drive. This function is different from the deletion of timeout response blocks described in most online articles. This function is similar to the HDCOPY of a floppy disk in the past. It is used for repeated read/write tests to normalize the track. This function is not written to G-LIST. But it will rewrite the information on the hard disk. If there is important data, do not use this function. 3. Another function is to enable cyclic testing and use it with the above two functions. You can select either of the above two functions. 4, The ERASEDELAYS parameter is modified in the MHDD. CFG file in the CFG subdirectory of MHDD. The personal opinion is set to 100 ms, so that all red blocks and some green blocks can be written for testing. The default value is too high, and many red blocks cannot be written for testing.

 

 

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Start LBA fill in the starting sector of your hard drive bad track end LBA fill in your hard drive bad track end sector.

If Remap is set to ON, the repair function is enabled.

TimeoutIt is generally the default time.

LOOP/test repair is set to ONThis indicates that repeated writes can be used to fix the fixed bad track.

If ERASE is OFF, It is disabled.

After setting, press F4.

Scan and repair are complete here.

 

I have tried the other two methods and they are very useful!
1. first, press SHIFT + F3 to scan the hard disk connection and select, press the F4 key, first scan it in general mode, and then use advanced mode to change. The specific method is to select LBA mode ,,, for other items ON, select CTRL + ENTER to perform the scan. After the scan is completed, perform the preceding operations. Select the CHS mode, Loop the test/repair item OFF, and Erase WAITs item OFF, select ON for other items. After the selection is completed, run the scan. OK !!! Do not scan in advanced mode directly. Some friends directly use advanced mode to perform operations on the hard disk for the sake of urgent success. This is wrong. If you scan in advanced mode directly, if it cannot be a good time, MHDD will be helpless, either unable to recognize the hard disk or repair the bad track)
Repair success rate (more than 90% of Class 1 bad channels, 70% of Class 2 bad channels, and 10 of Class 3 bad channels)

2. The following method does not need to be read by impatient friends. Same as above, first scan hard disk connection by SHIFT + F3, press F4, first scan more than 10 times in general mode, then use advanced mode to change, the specific method in general mode will be Loop Select the test/repair item ON and run the scan.
After scanning for at least 10 times, ESC exits and repeats the operation. Select advanced mode to perform the scan. OK !!!
Repair success rate (more than 90% of Class 1 bad channels, 80% of Class 2 bad channels, and 60% of Class 3 bad channels)

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1. Mhdd is a professional hard drive tool software developed by Maysoft in Russia. It has many powerful functions that cannot be compared with other hard drive tool software. It is divided into the free version and the full version paid, this article describes the usage of the free version. This is a G table-level software that shields the scanned bad sectors from the G table on the disk. (Knowledge: every new hard drive that just leaves the factory has more or less bad channels, but they are hidden by the manufacturer in Table P and Table G. We can't access it with general software. G table, also known as the user-level list, can store hundreds to one thousand of bad channels; P table, also known as the factory-level list, can store about 4000 of bad channels or more .) Because it scans hard disks very quickly, it has become the preferred software for many people to detect hard disks.

2. Features of this software: it does not rely on the motherboard BIOS and supports hot swapping. Mhdd can directly access the IDE port without relying on the motherboard BIOS. It can access a 512 GB ultra-high-capacity hard disk (the accessible sector ranges from 137438953472 to 286), even if you are using computers, no BIOS support or any interruptions. note the sequence of hot swapping: insert the data line before the power line. Unplug the power cord before pulling the data cable. However, I advise you not to be proficient in hot swapping, so that you may not accidentally burn your hard disk.

3. It is best to run Mhdd in a pure DOS environment; but do not use the original Intel-branded motherboard whenever possible;

4. Do not run Mhdd on the hard disk to be detected;

5. The Mhdd must record data during operation, so it cannot run on a write-protected storage device (such as a write-protected floppy disk or a CD)