To save some operational cycles your system doesn't usually bother with truly erasing the files you moved to Trash or Recycle Bin. In most cases the space the files occupied is just marked as available, and the new data may be stored in those memory sectors any time. But the data you need may still be there. So when your files got deleted, and you need them recovered, act fast. Ideally, stop using the hard drive, connect it into an external docking station, and boot from a different system disk or computer. Then connect the external drive with lost data.
Disk Drill knows hard drive data recovery. With multiple available file recovery algorithms, you are on your way to free hard drive recovery. Disk Drill Basic for Windows lets you restore up to 500MB without paying for the premium edition.
Disk Drill also provides a number of data protection options. With Disk Drill's Recovery Vault you have nothing to worry about in case your data gets erased in the future. Hard drives running on FAT32 or NTFS, or HFS+ can be protected with Recovery Vault and indexing takes seconds. That's it, no overhead, and any time you feel like an important file has gone missing, refer to Disk Drill's "Undelete Protected Data" algorithm.
Our computers are fast these days, like really fast. There's so much file activity going in the background, and file allocation tables are updated so fast, your deleted data may be pushed out the stack and the only way to recover it is by using Deep Scan. It literally reads your hard drive byte by byte and reconstructs the file types stored in Disk Drill's database. And there are hundreds of them available. Deep Scan takes longer to complete, but is totally worth it when it's time for hard drive data recovery.