FAT stands for File Allocation Table which has copy write rights and its developed by people of Microsoft in place of MS-DOS and considered as the prime file system for users of Microsoft Windows Me and Windows Up.Moreover FAT is used in floppy drives as its format is simple. Like any other file system FAT also has its own disadvantage when it comes to crashing. You may be surprised to see the fact that many users just does not care about the data recovery from hard drives. Even if they would like to, they will go for other hard drives without trying to recover the data from hard drives efficiently .The worst case is that most of the people use the Fdisk or any other hard drive service program to repair the impaired hard drive without any knowledge of what to do for hard drive recovery. The data will be constructed again through the recovery of hard disk drive, no matter whether the files were erased or are not accessible due to rammed hard drive. Some cases are there where hard disk drive is not accessible because of the ramifications on the hardware. One among the case is whenever the actual arm, whenever the tiny mechanical arm shifts back and forth across the disk drive may have endured the mechanical error. Some of the organizations nowadays charge fees for the external hard drive evaluation. But still there are free services given by some providers which need to be checked. After the evaluation or measurement carried out for the external hard drive recovery, an estimation of the whole process will be given by the technician. If the ignition was so strong then the disks will experience melting and there is no trust of recovery of data. If the thick char has not damaged the assemblies of head then the next thing we can do is, you can recover the data through disaster data recovery which will help to build again the electronics by which you can access the file. Some of the important tools are not available in it, especially to retrieve eth lost data. If that is the case, then downloading the software will be mere waste. Some may provide you the download for trial basis and you need to buy it if you want to use it. So we can say that, free download of software won't meet the needs for data recovery.