If you have ever wanted to know how data recovery works, I will provide you with an overview. Opposite to what you may think, when you erase a single file, it does not undergo the digital equivalent of shredding. Instead, all that happens is the reference to the written document is removed from the operating system index. So the single file still exists but the operating system does not know where to look for it because it has been removed and as such just can't be detected. Even so, data recovery specialists can rebuild the file index that the operating system needs to locate your computers file. When that is executed you can get 100% data recovery. Once you have removed a file, the room on the hard drive can be re-used & the original file will be overwritten.

Do not take the chance of having to telephone a data recovery expert. Back up all your significant files and ensure you retain the set up disks for important applications. It may be a noteworthy idea to get a 2nd computer, network it to your main pc and backup files between the 2 daily. Another good alternative is secure encoded online backup of your data because the data that's stored is off site and will not be impacted by a flooding, fire or natural disaster (or otherwise) in the location of your primary site.