Maybe almost all computer user has had experience of having their PC crash or hang, and sometime that problem make your data gone, so maybe you will lost your email, your mail contact address, your document and all the important file. So here the option for your consideration, to prevent your data being lost :

1. Check the components hardware. Occasionally a computer data recovery effort will not even be required at all. While it might seem like a hard drive has crashed, another component may be to blame. For example, the mother board or power supply might be faulty. Therefore, it makes sense to check these things before writing off the hard drive. If it’s unclear that these parts might be to blame, enlisting professional help might be in order.

2. Repair Operating System. If a your computer will still not boot up, computer data recovery in this case might require repairing or replacing corrupt core operating system files. To do this, follow to repair the OS.

3. Data recovery software programs. If the operating system or hardware issues are not blame for the failure and the computer will still boot up, a computer data recovery disk might help restore missing or accidentally deleted files. There are programs available from computer shops and online that are specifically designed to help with data recovery efforts.

4. Professional data recovery services. At now many companies that specialize in computer data recovery. They have the necessary hardware and software tools required to be able to recover files that individuals will not have at home or in the office. While these services can be costly, I’m sure that if your data is restored, you’ll agree that the expense is worth it. Beyond regular computer professional services that specialize in data recovery, computer forensics companies might be able to help out in extreme cases (for example, computers damaged in the case of fire or flood).

Computer data recovery is possible even when a hardware crash or failure has occurred. While the results will vary depending on the severity of the crash, the cause and the methods used, it is possible to retrieve files and data off of even the most severely damaged of hard drives.