Recovery after a crash If you cannot reboot the computer properly and your hard drive is no longer found in the BIOS, there are ample possibilities that your hard drive would have been crashed. Is you doubt so, shut down the computer immediately .If the problem is physical or external, don't execute over the drive as it may damage the head component or stack of the hard drive which will cause more complications Recovery after corruption Whenever you have reformatted the hard drive accidentally don't try to write anything new into the hard drive, because the files that you have erased are still inherent within the computer somewhere. There are number of crash drive recovery software which are on the market ,those which are good while others are not. There is some other software which has been developed specially for gaining prevention before itself and they do not do the actual recovery process. They will be able to rectify small day to day alterations, but in extreme recovery situations, the programs that are called utilities may cause further damage . This is in no manner the reason that most wise people or the security experts tell that simply deleting the data doesn't always fully erase the file. Hard drive recovery of the file is nothing but reconstructing the data that is lost. 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. Though, before bringing the drive to the mechanical shop or organization where the services are available, you have to have knowledge about what happened to your hard disk drive and what is the problem behind it. There are some points by which you can check or consult if you feel the need for a hard drive recovery process. The services provided for the recovery of hard drive often stands for one unique reason, that there is still some hope left for recovering the data lost, though you have erased your records or files from the hard drives unknowingly. The exact fact is that, it does not mean that the data is completely lost or deleted. Getting totally worried you may choose to reboot your computer, but it tell you that it cannot find a hard drive. If you are using the computer for a very long duration, then such a condition may never arise for you. Most probably it will happen while you are on the most important job and you want to finish it soon.