09/11/2007 Utilities

What is partition?

To divide memory or mass storage into isolated sections. In DOS systems, you can partition a disk, and each partition will behave like a separate disk drive. Partitioning is particularly useful if you run more than one operating system. For example, you might reserve one partition for Windows and another for UNIX.

In addition, partitioning on DOS and Windows machines can improve disk efficiency. This is because the FAT system used by these operating systems automatically assigns cluster size based on the disk size: the larger the disk, the larger the cluster. Unfortunately, large clusters can result in a wasted disk space, called slack space. There is an entire sector of the software industry devoted to building utilities that let you partition your hard disk, such as Fdisk, 7tools Partition Manager, Paragon Partition Manager.

Explanation

Use partition tools ( such as 7tools Partition Manager, Paragon Partition Manager. to repartition hard drives is a common occurrence but care must be taken as if it is done incorrectly or problems on the hard disk exist, data will be lost.

Symptoms

Frequently when a repartition is attempted the program will not terminate correctly, crashing before it finishes. This can be due to corruption of the logical disk structure, physical problems (e.g. bad sectors on the hard disk), incorrect software installation etc. Such as Partition Magic in the wrong operation, unexpected termination in resizing partition or program crash due to power error or more problems of the hard disks (e.g. due to bad sectors etc.). Where previously the computer would boot and be usable, systems often refuse to start and may produce the following error messages: (these errors are frequently displayed on a black screen with white text)

• No boot device
• Operating System not found
• Primary Hard Disk not found. Press F1 to Continue
• Master Boot Record Not Found
• Invalid or corrupt FAT
• Invalid partition table entries
• Invalid sector
• Cannot find file or program
• Invalid command.com
• Primary/Secondary Hard disk failure
• Non system disk Disk error

To recover re-partitioned drives please follow this procedure:

Recovery of data from re-partitioned hard drives is often complicated and time consuming. First We recommend that you use our professional partition recovery tool - Partition Table Doctor to recover original partition. If Partition Table Doctor cannot help you, you can use Data Recoery Wvizard to recover files.Data Recovery Wizard Free Download from Bestshareware.net.

To recover lost files from a Repartitioned drives, follow these steps:

1. Click the Select "AdvancedRecovery" button on the main window of Data Recovery Wizard.

2.You can see the list of all physical device(s) and logical volumes found on your computer.

3. Select the physical disk that contains the re-partitioned drive.

4. Click the "Next" and Data Recovery Wizard will automatically run Partition Recovery.

5.Data Recovery Wizard would scan the hard disk for all the lost partitions and would present the list of found partitions.

6. If Data Recovery Wizard cannot find the partition that you want to recover, please click "OPTION" button on device list window, then a dialog window will appear, please click "Full scanning device for analyzing partitions" radio box and press "OK" button.

7. Ignore all the known or existing partitions and select the older partitions.

8.Click "Next" to begin Scanning for Files.

9.Select the file or directory that you want to recover and press the "Next" button.

10.select the directory or file and press the "Next" button to save the data.

Note:

1.If Data Recovery Wizard cannot find the older partitions finally, it can recover your files with "RAWRecovery". please click "RAWRecovery" in main window. You can drag the green column to change the range of the disk for recovery.





2.If you cannot sure old file system of the partition, you can click "OPTION" and select "Scan File System". Data Recovery Wizard will automatically scan the partition and suggest you the best suited file system. For more information: Scan File System.

Caution: Saving file(s) to the partition or drive from where you are recovering data, for it may result in overwriting of data, and would result in permanent data loss!!!

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