Case:The client said that the Toshiba micro disk was dismantled on the Toshiba computer. During the use of a portable computer the day before yesterday, I felt that the Windows operating system was a bit slower than usual, and the computer was turned off normally after use.Yesterday, the computer could not enter the Windows operating…
Case:A NAS host of the university was set up by 4 250GB Seagate hard disks for RAID 5 configuration. It was originally thought that it was a pure third hard disk failure. After the original inspection, it was found that the first hard disk was also damaged for data data.Customers first send the first data…
Well, Windows 8 has no Start Menu any more and the startup folder has disappeared also. Where can I find that folder? Or is there a new way with Metro? Solution: It can be found here: C:Users%USERNAME%AppDataRoamingMicrosoftWindowsStart MenuProgramsStartup or easier to access with this command in the Run Win+R prompt: shell:startup Here are even more…
Case:Computer poisoning makes all data unable to open normally Solution:Tongxin data recovery engineer testing, the file offset the original position, through scanning the underlying data, find the offset position, the data is completely restored
Case:When reading and writing the U disk, the computer crashed and inserted into the U disk again. The directory is all garbled. Solution:After being tested and found that the FAT table was damaged, the software data developed by ourselves was completely copied. The customer was very satisfied and praised our technology again and again.
WD Drive Data Recovery
If the drive is spinning and shows up in Disk Management (Windows), or Disk Utilities (Mac), but you can’t access it, then the drive’s partition table may be damaged or corrupted. It may be possible to still extract the data utilizing data recovery software. Western Digital does not provide data recovery software, however, there are several kinds on the Market. If you do a web search for Data Recovery it will yield plenty of data recovery software options.
If the drive does not show up in Disk Management (Windows), or Disk Utilities (Mac), and you have tried all the troubleshooting options relevant to your drive, then your drive has most likely failed and you will need to contact a data recovery company to retrieve your data.
Western Digital does not provide data recovery services. However, They have a list of recommended preferred data recovery partners that you can use for data recovery services.
WD Drive Circuit Board
Western Digital does not sell or replace circuit boards for our hard drives nor are we aware of any other companies that sell them. Replacing the circuit board on a hard drive is not a recommended method for recovering data or drive functions as this will void the warranty on the hard drive. For every hard drive model that Western Digital manufacturers, there are many firmware changes that would make it very difficult to find a circuit board with the same firmware of the defective drive. If you attempt to install a circuit board with a different firmware than the original, this may damage the hard drive further. HDDZone.com is a recommended shop which can helps to find a matching western digital pcb for your dead drive.
WD Drive Repair
Western Digital does not repair or recommend repair services for our drives. Any repair services performed on a WD drive will void the warranty. If your drive is under warranty, please see How can I replace a product under warranty?
Case:Two hard disks (main and slabs) of the customer’s personal computer are hung on the same computer. The main disk is divided into four districts (including the system area), from the disk divided into two districts, a total of six districts.Customer reinstallation of the system operation error, resulting in only two new districts (one hard…
MHDD is the most popular freeware application for low-level HDD diagnostics.
Interfaces Supported:
MHDD supports these interfaces: IDE, Serial ATA, SCSI. Also there is a possibility to access an USB storage, there are drivers for emulation (USB->SCSI).
What can MHDD do?
This software can make precise diagnostic of the mechanical part of a drive, view SMART attributes, perform Low-level format, bad sector repair, different tests and tens of other functions.
Platform:
· Intel Pentium or higher CPU
· 4 megabytes of RAM
· DR-DOS, MSDOS version 6.22 and higher
· Any boot device (USB, CDROM, FDD, HDD)
· A keyboard
IDE/SATA Controllers:
· Any integrated into motherboard north bridge (addresses: 0x1Fx for primary channel, 0x17x for secondary channel)
· PCI UDMA boards (detected automatically): HPT, Silicon Image, Promise, ITE, ATI and so on. Even some RAID boards are supported. In this case MHDD works with each physical drive separately
· UDMA/RAID controllers integrated into motherboard as additional chip
Hard disk drives:
· Any IDE or Serial-ATA drive with size bigger than 600Mbytes, in other words, LBA mode is supported in full.
· Any IDE or Serial-ATA drive with size lower than 8388607 TBytes, in other words, LBA48 mode is supported in full
· Any SCSI drive with sector size 512-528 bytes
· Any SCSI removable media such as tape, CDROM. Maximum sector size for such devices is 4096 bytes
What’s New in MHDD v4.6?
· Fixed rare hangs when working with slave device
· Fixed TOF/ATOF problem with determining maximum file size when operating with SCSI devices
· Fixed displaying firmware version instead of serial number in SMART ATT
· Added PCI device ITE 8211 PCI IDE
· Added PCI device VIA VT6421 IDE RAID
· Fixed several issues with some modern BIOSes
· Jumps while scanning now logged properly
· Resets (“R” key) while scanning now logged properly
· ASPI drivers now have latest versions
Related Links:
· MHDD FAQ
· MHDD Documentation
· Change log
· Magic Boot Disk with MHDD
MHDD Free Download:
MHDD 4.5 (older version, but includes ATA/SCSI Terminal)
· MHDD 4.5, self-extracting floppy image
· MHDD 4.5, CDROM iso-image
· MHDD 4.5, just-an-archive (MS-DOS executables only, no SCSI support)
· MHDD 4.6
Hard drives are the memories of our computers. They store documents, data, voice recordings and even entire movies. Because hard drives are so spacious and efficient these days, we can start to believe that they offer permanent and secure storage for our data. Unfortunately, that is not the case.
For such hard-working devices, hard drives can be remarkably fragile. They store data on stacks of rotating metallic platters. Magnetic heads ‘float’ between the platters, moving information back and forth without making physical contact. The information that looks so real on a monitor is, in fact, delicate electrical impulses on a metal plate.
Once people in an organization know how hard drives work, they understand how easy it is for data to be lost. As hard drives become smaller, so does their ‘tolerance’, the distance between the platter and the heads that read and write data. Bumping into a computer while the hard drive is running can make the head actually touch the platter and literally ‘rub out’ the data there. Contamination, like dust or moisture, or a slight change in power can also cause damaging head contact.
That’s why it is absolutely vital to switch off the hard drive at the first sign of any unusual noise, like grinding, scraping or chattering. If nothing’s wrong, nothing has been lost. But if there is physical damage taking place inside the drive, prompt action can keep it to an absolute minimum and more data will be available for recovery
Case:There is no disk symbol after the mobile hard disk is connected to the computer, and the computer does not recognize the disk.In exchange for multiple failures.The customer immediately contacted the data recovery center detection and recovery. Solution:Data recovery engineer testing, hard disk damage, has been used for three or four years, magnetic head aging,…
