User's Guide for DOS

User Guide for Active@ UNERASER DOS:

3.4. Performing a Drive Scan

Before you start data recovery or search for files and folders, the hard drive must be scanned. Scanning uncovers areas of the hard drive that may contain deleted files. If you are searching for a deleted partition or logical drive, read the instructions in Performing a Device Scan.

There are two types of drive scan, as described below:

1. Basic Drive Scan is a quick and general scan. Most of deleted files and folders can be found with this type of scan. Try this scan first [Enter]
2. Advanced Drive Scan is much slower as it processes the entire surface of the hard drive, detecting all possible clues that may reveal deleted data. If the Basic Drive Scan does not reveal the files you are searching for, try this scan next [Ctrl]+[Enter]

After the cursor is positioned over a logical drive, press [Enter] to scan that drive with a Basic Drive Scan

To stop (cancel) the scanning process, press [Esc] at any time.

After completing a drive scan the screen displays the areas where data may have been deleted, similar to the figure below. Deleted files or folders are marked grey.

Commands at the bottom of this screen are described below:

• [TAB]-Panel — Switch between left and right panels.
• [Shift]+[TAB]-8.3/LFN — Change file names from 8.3 notation to Long File Name notation.
• [Ctrl]+[F]-Search — Open the search parameter dialog box to begin search.
• [Ctrl]+[U]-Unerase/Copy — Unerase a deleted file / copy an existing file.
• F9]-Menu — Open the command menu at the top of the console.

Try to locate your files and folders visually by going through the folder tree. Alternately, use the instructions found in Searching for Deleted Files and Folders.

Content:

1. PRODUCT OVERVIEW
   1. Restoring Deleted Data
   2. Files Erased
   3. Partition Damage
   4. Steps to unerase Files and Folders
2. SYSTEM REQUIREMENTS
3. USING Active@ UNERASER CONSOLE
   1. Starting Active@ UNERASER DOS console
   2. Starting Active@ UNERASER Windows console
   3. Command Bar Menu
   4. Performing a Drive Scan
   5. Performing a Device Scan
   6. Searching for Deleted Files and Folders
   7. Searching for Files by Name
   8. Using Hex/Text Viewer
   9. Unerasing a Deleted File
   10. Unerasing a Deleted Folder
   11. Creating a Disk Image
   12. Steps to create a Disk Image
   13. Checking Disk Image
   14. Working with Disk Image
   15. Long File Names Support
   16. Recovering Files with Long Names
4. DATA RECOVERY TIPS
   1. Treat Recovery Area With Care
   2. Save Recovered Files Onto a Different Drive
   3. Load UNERASER to a Floppy
5. PREPARING TO USE THE UTILITY
   1. Preparing a DOS-Bootable Floppy Disk
   2. Preparing a Bootable ISO CD-ROM Image
6. USING COMMAND LINE PARAMETERS
   1. Overview of Command Line Parameters
7. QUESTIONS & ANSWERS:
   • How to undelete files on NTFS
   • How to recover deleted files on a FAT32 volume
   • How to recover a deleted folder containing files and subfolders
   • How to check recoverability of a deleted file or folder
   • How to use Active@ UNERASER for Disk Image creation
   • How to scan and recover files if a partition exists but appears to be damaged
   • How to force LBA mode to access larger drives (more than 8GB in size)
   • How to see localized characters in file names
   • How to backup and restore MBR, Partition Table and Boot Sectors
   • How to recover files and folders on a partition that has been deleted
   • How to prevent Master Boot Record (MBR) corruption
   • How to recover files and folders from formatted or reformatted hard drive?
   • How to read and copy existing files from NTFS to FAT partition?
   • How to restore lost hard drive partition
8. HOW TO...
   • Scan Drive
   • Perform Device Scan
   • Search for deleted files and folders
   • Use Hex/Text Viewer
   • Unerase deleted file
   • Unerase deleted folder
   • Create Disk Image
   • Open and Work with Disk Image