Hard drive gets affected due to water. If the hard drive has been beneath the water for only a short duration, there is a possibility that the head assembly has not been imbued by water. Though the recovery process seems a bit difficult, it can yet be done. Even if the water has gone inside the head assembly it is quite crucial that the drive be under water. According to the specialists, sound heard are symptoms of the shielded head failure where the crash actually occurs and crash recovery has to be carried out to get the files. If the noise that troubles you is heard, then one thing that you can do is to get in touch with the expert immediately. This recovery will help you to get the drive along with lost data contained files. It may be human intervention which is purposeful, any dysfunction of it electronically or mechanically, occurrence of the problem in the software, virus or worm attack etc. But whatever it may be ,the best thing to note down is that most of the time the data shall be recovered within maximum of two days and it is 80-90% assured that the lost data ca be regained by any expert who is well versed in doing this type of procedure. Most of the hard drive data recovering companies finish the task by 24-48 hours. Retrieving the data stored After rating your hard drive, the next duty of the company is to get the approval of their valuable customer. As soon as they gets the approval the hard drive which is under repair will be taken a duplicated copy which will be created and it will be sent in the process line where recovery of the exact information present in them need to be recovered. We are all fortunate enough that, we get the software in the market in order to recover the data from the hard drive which assists every user to retrieve the lost data, though we must be cautious against it. Without basic knowledge or foundation on the file system, you should never go for a recovery of data from hard drive by yourself. 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. Apart from it, the data amount that has to be retrieved along with the steps needed and price of the service will be given .Thus these firms deliver some quotations to do the hard drive recovery.