Download mhdd.exe

One block is sectors , bytes. During the scan you can have MHDD jump around. Drive registers are displayed at the top of the screen. BUSY appears when drive is executing read or write command, or executing an online test. INDeX flag is also obsolete, but sometimes blinks. The brightness of the blocks reflects the length of time to read the sectors. Longer times are most likely do to the firmware performing a retry of a marginal spot.

It is normal for a checker board like pattern to scroll across the screen. A table on the right shows the number of blocks in each time range. If an error occurs a letter describing the type is shown? Save the scan log! A blue block indicates remapping in progress. Check smart att Of special interest are: 5 Reallocated sectors count: this should be zero!

Reruning the scan most likely will show the same errors since the hardware firmware has already done multiple attempts to read the data. If you see all blocks as errors STOP. You are dealing with service-area error which cannot be fixed by MHDD. The best option contact the manufacturer for a Return Materials Authorztion, or discard the drive. You can write several sectors or the whole drive to a file or to set of files.

Note: decreasing the sound level is done by increasing the seek time! You can also cut or uncut the drive by using this command. Some manufacturers are using Device Configuration to artifically reduce the size of a disk. This is the fastest erase and cannot be stopped. In this state the drive will continue the erase unless it is unlocked after being partially erased if the internal password is known.

Notes at CMMR. Enter the new MaxLBA number, in sectors. Click here. Popular Downloads Macromedia Flash 8 8. Counter-Strike 1. Cool Edit Pro 2. Microsoft Office Service Express your ideas, solve problems, and connect Cheat Engine 6. C-Free 5. Mozilla Firefox Horizon 2. NET Framework 4. Now you can press F1 and use whatever commands you want. Please be extremely careful when running MHDD first times.

Please also take a look at the registers. BUSY appears when drive has something to execute read or write command, for example. INDEX flag is obsolete too, but sometimes it can blink. You will see menu where you can adjust some settings.

All data-destructive functions Remap, Erase Delays are switched off by default. Press F4 again to start the scan. MHDD scans drives by blocks. How MHDD scan works: 1. MHDD starts timer 4. MHDD counts the time and puts corresponding block on the screen.

If error occures MHDD prints corresponding letter which describes the error. MHDD repeats steps 1—5 till the end sector. If your drive has errors, first thing to do is to make full back up. This helps to get rid of «software bad blocks». If you see all blocks as errors, do not try to erase or remap sectors on your drive. You deal with service-area error which cannot be fixed by standard MHDD commands. If you need your data — the best option is to use a data recovery company.

What do they mean? The most important thing is the raw value of «Reallocated Sectors Count» attribute, which says how many remaps are on the drive. Normally, you should always have zero there. If it is more than 50 — you have a problem. That means you have bad power supply, vibration, overheating or just broken hard disk drive. Take a look at the temperature. The best values are between 20 and 40 degrees centigrade, but some drives do not report their temperature. You should normally have zero there.

If it is not zero, you have to change your cable immediately.