Usually use is inclined to reinstall operating system when it runs into malfunction. However, many files are going to be lost resulting from system reinstallation. To recover those lost files, user is recommended to employ MiniTool Power Data Recovery - a professional data recovery program.

What is system file?
A system file is a computer file important to the operating system. More specifically, it may refer to:
- .sys - a Microsoft Windows file extension for system-related files
- The System suitcase on Mac OS
- Any file marked with a "system" attribute
- sys is the root directory of the Linux file system sysfs

File types:
By property and function: system file, user file
By file logical structure: stream oriented file, recording file
By information storage life: sequential access file, random access file
By file physical structure: sequential file, threaded file, index file, HASH file, indexed sequential file
UNIX file: ordinary file, catalogue file, special file

When data loss emerges, I would like to recommend user the professional data recovery software - MiniTool Power Data Recovery which is newly developed by MiniTool Solution Ltd. with powerful data recovery functions, expedient operations and user-friendly interface. What's more, MiniTool Power Data Recovery runs flawlessly under Windows 3.1, Windows 95, Windows 98, Windows 2000, Windows XP, Windows 2003, Windows Vista and Windows 7, etc and supports file systems like NTFS, FAT12, FAT16, FAT32. User could download it at MiniTool Power Data Recovery Download Center.



After running MiniTool Power Data Recovery, user would see five modules in the main interface:

• Undelete Recovery
  This module is to recover deleted data, for example, the deleted data is usually stored in recycle bin, in case recycle bin is emptied, user should adopt this module to recover lost data.
• Damaged Partition Recovery
  This module could perform full scan to partition. In case partition is formatted, or system is reinstalled, user should employ this module to recover lost data.
• Lost Partition Recovery
  This module is to recover lost partition, such as deleted partition or crashed partition.
• Digital Media Recovery
  This module is to perform digital media recovery, mainly directing at video or audio data, such as JPG, GIF, PNG, MP3, WMA, MP4, AVI and ASF, etc.
• CD/DVD Recovery
  This module is to recover lost data from CD/DVD supporting DVD+RW, DVD-RAM, HD-DVD-R, HD-DVD-RW, BD-R and BD-RE.

When moving mouse onto each module, corresponding description would emerge in the red zone. Here we should select "Damaged Partition Recovery".



In this interface, all partitions are displayed and user could select needed ones to perform next step by clicking "Full Scan".



Now user should select the desired partition and click "Show Files".



Now user could see all partition file including deleted files with mark "D" and unknown file with "U". User should check desired files and click "Save Files" to store them into assigned path.

For more detailed information, please go to the official website of MiniTool Power Data Recovery: http://www.powerdatarecovery.com.

• How to perform file recovery?
• How to perform file data recovery?