D1 .3 Understanding Hard Disk Structure

• Hard disk structure , Disk Platter , Read Write Head ,
• Spindle motor , Head arm , Head actuator (voice coil actuator) ,
• Air Filter , Tracks. Sectors , Cylinders , Cluster ,
• Cluster size in FAT& NTFS , CHS cylinder head sector addressing ,
• ZBR zoned boot record , Types of connection ,
• SCSI, SATA, PATA , LBA& CHS calculation ,
• Sector Cluster addressing , Logical & physical addressing

D1.4 INTERNAL PARTS OF HARD DISK DEMO HARD DISK from INSIDE IDENTIFICATION OF INTERNAL PARTS, DISASSEMBLE SATA 3.5 DRIVE1TB ST31000333AS

• HDA head and disk assembly , PCB printed circuit board ,
• MCU micro Controller Unit , VCM voice coil motor controller ,
• Buffer Memory , Flash chips , Shock sensor ,
• TVS diode transient voltage suppression diode ,
• Breath hole , Head contacts , Motor Contacts , Recirculation filter ,
• Top dumper , Top platter ,Platter clamp , Top magnet ,
• Plate with heads and connectors , HSA head stack assembly ,
• HSA stopper , VCM voice coil motor , VCM HSA Actuator
• Arm , HGA Head Gimbals Assembly , Bearing ,
• FPC flexible printer circuit , Gasket , Sliders ,
• ABS air bearing surface , Preamp , Heater , Gimbal ,
• Platter Clamp , Spacer ring , WD Internal parts demo

D1.5 Understanding data stored on hard disk & Microsoft files structure

• What is a file system?
• Types of files systems
• DOS 3.3 (FAT12)
• DOS 5.0 (FAT16)
• Windows 3.1 (FAT16)
• Windows 95 (FAT32 OSR 2)
• Windows 98/ME (FAT32)
• Windows NT/2K/XP (FAT32 / NTFS)
• FAT file allocation table
• NTFS New technology files system
• FAT/NTFS COMPARISON
• How FAT works
• How data store in hard disk in fat
• Explaining disk block allocation method
• File slack space
• Linked allocation
• Attributes of files systems
• NTFS File attributes
• MFT files working idea
• Deleting NTFS FILES

D1.6 working concept of Format, Partition & computer booting process,

• Initializing a Hard drive
• Low level Format (factory)
• Initializing a hard drive with FDISK
• Master partition table
• Partition type codes
• Partition table entry
• Single primary partition
• One primary with extended partition
• Boot process
• Hard disk boot sequence (dos)
• Windows 2000 boot process
• Post, MBR, Boot Record
• MBR (Master Boot Record)
• GPT (GUID Partition Table)
• NTFS
• Partition boot sector
• MFT (master file table)
• Used of different software

D1.7 Data recovery Software used for different problems, steps with features

• Data Recovery of MBR corrupted
• Data Recovery of Deleted Files
• Data Recovery from Deleted Partition
• Data Recovery from Reformatted Partition
• Data Recovery from External Drives
• Data Recovery from USB Drive
• Data Recovery from Camera Card
• Data Recovery from CD/DVD
• Data Recovery as RAW Recovery
• Data Recovery from Damaged Sector
• Data Recovery from RAID

Recovery Features

• FAT Support , NTFS Support , Quick Scan , Deep Scan , Media File Recovery , Email Files Recovery , Microsoft Office File Recovery , Recovers from Unbootable Drive

Search and Recovery Options

• Search by File Extension , Search by Date , Search by File Size , File Preview , Batch Recovery , Saves Scan Information , Network Recovery , Help & Support , Supported Configurations , Windows 7 , Windows Vista , Windows XP

Top common data recovery software used in market

• Stellar Phoenix, R Studio , Data rescue , Get data back , Icare , Power data recovery , Salvation , Encase , Kernel , Ptods , Hard disk Stennar , Hard disk Regenerator

Corrupted files repair software

• Excell repair , Access repair , Power point repair , Jpg repair , Backup files , Repai video master avi, divx,xvid,mpeg, rm, rmvb, asf, wmv, wma , ac3

Understanding Basic concept of RAID

D1. 8 Pen drive and Memory card logically data recovery concept

• Pen drive data recovery
• Memory card data recovery concept
• Data recovery from Pen drives
• Data recovery from memory card
• Data recovery from Zip drives concept
• Data recovery concept of iPods, Digital cameras, Mobile phone, etc