Frequent data backup servers as a vital mean at work to insure immediate data recovery after system crash or hard disk damage. Therefore, user should develop a good habit of backuping important data. Additionally, user is required to save hard disk and extract data from damaged partition to minimize losses. Or even in view of data loss. MiniTool Power Data Recovery can also help user retrieve lost data.

Causes for system crash:

• System identification failure to hard disk
  System fails to start from hard disk, enter C: from A: or find hard disk by CMOS automatic detecting function.
• Faults triggered by CMOS
  Whether CMOS hard disk type is correct or not directly decides the normal function of hard disk. Currently, almost all computer support "IDE Auto Detect" function to automatically detect hard disk type.
• Boot failure triggered by master boot program
  Master boot program is located at hard disk master boot sector to detect hard disk partition determine active partition and transfer boot right to active partition DOS or other operating system.
• Boot failure triggered by partition table error
  Partition table error is a severe problem of hard disk, leading to distinctive degrees of loss.
• Partition effective symbol failure
  In hard disk master boot sector, there is a crucial part, namely the last two bytes "55aa", the effective of sector. When starting from hard disk, floppy disk or CD, it will detect those two bytes to determine whether the hard disk exists or not.
• Boot failure triggered by DOS boot system
  DOS boot system comprises DOS boot sector and DOS system files. System documents include IO.SYS, MSDOS.SYS and COMMAND.COM among which COMMAND.COM is the shell document of DOS can be replaced with other equivalent documents and indispensible for DOS booting under default status.
• Read-write failure triggered by FAT
  FAT records the storage address of hard disk data, and every file has a group of FAT chain assigning the cluster address. FAT damage means the file loss.
• Boot failure triggered by directory table damage
  Directory table records the file names and other data among which the starting and terminal cluster number is the most vital one. Directory table doesn't possess automatically backup function; therefore, directory table damage could probably lead to large amount of data loss.

All above-mentioned situations could lead to system crash and data loss. To retrieve those lost data, the best method is to find a professional data recovery software. Fortunately, MiniTool Power Data Recovery is the very all-in-one data recovery software with powerful functions, small size and simple operations to recover lost data. User could download it at MiniTool Power Data Recovery Download Center for free.



After running this software, user could see five modules: "Undelete Recovery", "Damaged Partition Recovery", "Lost Partition Recovery", "Digital Media Recovery" and "CD/DVD Recovery". When moving mouse onto each module, corresponding description would emerge in the red zone above. Now we are to recover crashed data, select "Damaged Partition Recovery".



In this interface, two buttons are available on the right: "Open" button is to research and recover deleted data in circumstance that partition functions normally; and "Full Scan" is designed to recover damaged or lost data from damaged, unreadable and accidentally formatted or deleted partition. Now we click "Full Scan" to enter next step to recover crashed data.



After scan, user could see numerous options. Select the corresponding partition and click "Show File".



Now, MiniTool Power Data Recovery has searched all partition files including crashed files. Choose those files to be recovered and click "Save Files" to set saving location.



Now please appoint a saving location and then click "OK". This demonstration on recovering crashed data is merely a small portion of function of MiniTool Power Data Recovery, for more information, please go to the official website http://www.powerdatarecovery.com.

• What is crash corrupted file recovery software?