When the drive is physically damaged.
One of the most common causes of data loss is physical damage. Simple manufacturing defects or external influences such as shock, dust or electric shock can cause internal damage. Antistatic discharge or ESD is another common cause of failure. Physical damage will inevitably require the help of data recovery experts. Unless you have a clean room and donated parts, any attempt to recover your data will almost certainly make the data unrecoverable. The data recovery specialist will assess your media damage before you can identify the parts that may need to be replaced in order for the drive to run again. Experts often use damaged hard drives of the same make and model to replace damaged parts. A reputable expert will provide a list of documents and restore the quotation in advance.
When the operating system fails.
Fortunately, if your operating system fails, there is no problem with the hard drive itself. The data area is usually secure, so you are highly likely to recover completely. All the experts need to do is copy the data from the hard drive to the new hard drive. This is easier said than done, so please consult. If you are not familiar with hard drives and data structures, don't risk getting valuable information.
When it died of old age.
As hard drives age, they experience unpredictable failures. All hard drives will fail at some point, but you never know when. Over time, the mechanical components of the hard drive wear and the surface of the media degrades. Sometimes this causes the drive to crash. Hard drives are becoming more and more reliable, but always read from the manufacturer's meaning before the failure ' or MTBF. This is usually calculated in hours, and when this has expired, it may be the time of the upgrade.
If it catches the virus.
Computer viruses can be extremely malicious and can cause damage to your computer, and if you become a victim, ransom can be very expensive. Not only is it recommended, but you also need to install a decent anti-virus program on your computer. Many users forget that malware does not always appear to be a virus. Therefore, malware and other malware software should also be considered essential. Some viruses spread quickly around your computer and to any network connected to your computer. So even if you have a mapped backup, you can quickly capture any malware before it propagates. Be sure to be careful when downloading files and applications online, making sure they are a safe source, and don't open any files that are emailed to you from unknown sources.
When you accidentally delete or overwrite data.
Manually overwriting data or accidentally deleting data is a common story. Many people usually think that their data has been saved elsewhere and will delete the file. Although the data being overwritten is usually an accident, it is usually done intentionally. In criminal and forensic situations, data may be deliberately deleted in an attempt to cover up the trajectory of illegal activities, which means that forensic experts may be hired to perform data recovery for hidden data. Unfortunately, restoring data that has been overwritten can be difficult, sometimes impossible.
The best way to avoid data loss is to simply back up valuable files or use cloud services on an external hard drive. If you choose to back up your data, be sure to keep it in a safe location away from your computer. This will ensure that any damage [such as floods, fires or theft] will not affect the backup file. Also, be sure to save a full copy of the original file and remember to back it up regularly.
Orignal From: Five common reasons for data loss
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