How to Restore Mac Hard Drive and File System When Hard Drive dead?

Question 1: Hard disk partition, how to restore the previous data or files?

My hard disk is 80G, the original five partitions, C, D, E, F, G, in the original C drive is installed SP2 system, there are four other disk files and software, and later I installed a new WinXpSp3 system (this system is the original date), in the installation did not seriously optimistic about the installation prompts, mistakenly formatted hard disk with other partitions grid, resulting in other partitions were gone, leaving only a C drive, files and other disk software is gone, and now I want all of them recovered, Will use any way to restore all the files and software?

Question 2:  Reinstall the system, the hard disk partition is lost, how to recover partition?

My dual system, xp, win7. Enter the 5 districts show only 4 disk, click the drive letter can not open display unformatted! I would like to ask how can I do?

What is the hard disk drive:

About hard drive hard disk drive device (Hard Disk Driver, HDD) is also a microcomputer system basic external memory device. Different from the floppy disk drive, its disk piece of cemented carbide, and a fixed installation within the drive, so also can be collectively referred to as hard disk. compared with a floppy disk, and its storage capacity is much greater, the speed is much faster, and the volume is also smaller .3 "the capacity of a floppy disk is 1.44MB, while the PC hard drive capacity 40GB to 160GB. market on the hard drive mainstream brand for Quantum (Quantum), Seagate (Seagate), diamond (Maxtor), western data (Westdata) and IBM.

Soulation: How to recover lost data from hard drive, USB flash drive?

Need to restore data'd better stop writing new data needs analysis based on the problem, choose the correct way to go to restore, not blindly use software to scan partition loss. Wrong operation may lead to permanent data loss. Best to maintain the status quo, the correct analysis and processing is largely complete (recovery by directory) to restore the original data. Again destroy the data in order to avoid the wrong operation to increase the difficulty of recovery data.Recommended to use a professional data recovery software, the following recommended several popular Hard Drive Recovery software.

How to recover data from Mac hard disk--Hard Drive Recovery Mac

This Data Recovery for Mac is wonderful Mac data recovery software to recover Mac data lost or deleted files from Mac, with Wondershare Data Recovery for Mac,you can recover all  lost Data.

For Windows: Data Recovery for Windows

Features:

Deleted Recovery - Restore deleted files for Mac only on Mac hard drive with HFS+ file system.
Deep Recovery - Deep scan and recover files for Mac from both Mac hard drive and other portable storage devices with HFS+/FAT/ NTFS file system.
Recover iMac hard drive data after corruption, accidental format or re-format and also support other popular models of Mac computers
Salvage data that has been deleted or lost from HFS+, HFSX, FAT16 and FAT32 volumes
Recover files from corrupted, formatted or re-formatted Mac hard drives
Supports HDD recovery on multi-disk drives i.e. IDE, SCSI, SATA etc.
Ability to restore data from hard disk on MacBook Air, Mac Mini and MacBook Pro



How Mac Hard Drive Recovery Software works?

Step 1: You first need to download and launch the utility on healthy volume or drive. Once the software is launched, it provides you the 3 option i.e. “Recover Files”, “Recover Photos” and “Recover Partitions/Drives” options. According to your scenario, select one of the 3 options to recover your data



Step 2: Now, select the Mac hard disk and click on "Next" option to start the recovery process. As you select the Mac hard drive, the software start scanning the netire drive to retrieve deleted or lost data

Step 3: Once the data is recovered successfully, view recovered files either by using “File Type View” or “Data Type View” option.




  

Useful tips:

Take a regular backup in order to avoid data loss. If you have already taken a backup then it is very easy to restore lost data using the backup file. Always properly turn off your Mac in order to avoid data loss due to abrupt system shutdown.