Data Recovery

Ever delete a folder, only to realize that it contained something vital? Even if you’ve empted it from the Recycle Bin, you can still recover the data that’s been deleted. Data Recovery software allows you to restore files and data that have been lost due to accidental deletion, file corruption or hard disk failure. How does it work? To understand how data recovery works, it’s best to first get a grasp on how files are written and deleted in the first place.

Each hard drive disk, floppy disk, USB drive and other kind of storage media consists of millions of sectors. When you write data onto a disk, your computer writes onto empty, or free sectors. When you run out of room or decide to get rid of a file, you delete it. But when you delete a file, your computer doesn’t eradicate the contents of the sector. Instead, it simply marks the sector as “free space,” in spite of the fact that there is data written to the disk. The data remains there until another program needs to use the space and overwrites it. This is true even if you format your hard drive or change its partition table.

Data recovery software goes in an salvages data from sectors that have been marked as “free space” but hasn’t yet been overwritten. This is difficult—it’s a bit like trying to piece together a fossilized skeleton without knowing what the original creature looked like. But through sophisticated algorithms, these data recovery utilities can undelete or recover data with impressive effectiveness.

To learn more about data recovery utilities, check out some of the links below.

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