HDD and SSD data loss require different decisions. Hard drives can fail mechanically, while SSDs can be affected by TRIM, controller failure, encryption, and background writes. In both cases, stop writing to the affected drive before scanning.
This guide compares cautious software choices and explains when software should not be used first.
Quick picks
| Situation | Consider first | Why |
|---|
| Formatted or corrupted external HDD | Stellar | Preview-first workflow for deeper scans. |
| Broad external-drive and media checks | Recoverit | Useful to compare when the drive is detected and previews are available. |
| Simple deleted file on Windows HDD | Recuva or EaseUS | Free/simple options may be enough. |
| Internal SSD deleted-file case | Free preview only | TRIM may limit recovery. |
| Clicking or grinding HDD | Stop | Mechanical failure needs professional care. |
HDD recovery: what software can help with
Traditional hard drives store data magnetically. When a partition becomes corrupted or files are deleted, some data may remain until it is overwritten or the drive fails further. Recovery software attempts to read what remains and rebuild file listings or recover by file signatures.
Stellar is worth comparing for formatted and corrupted drive scenarios where previewing files before payment matters. Recoverit is a strong alternative when the external drive is still detected and the user wants a broad Windows/Mac tool for documents, photos, videos, USB drives, and memory cards.
HDD warning signs
Do not run repeated scans if the hard drive:
- clicks or grinds;
- spins up and down repeatedly;
- disappears during scans;
- freezes the computer;
- becomes unusually hot;
- reports serious S.M.A.R.T. warnings.
In these cases, scanning can stress a failing drive. Professional recovery may be safer.
SSD recovery: different rules apply
SSDs use flash memory and often support TRIM. When TRIM clears deleted blocks, recovery software may have nothing left to recover, even if the file name once appeared in the file system.
Deleted-file recovery from an internal SSD is most realistic when the computer was powered down quickly, TRIM did not clear the blocks, or the loss involves file-system corruption rather than ordinary deletion.
Use a free preview before paying and be skeptical of claims that any tool can recover every deleted SSD file.
External SSDs and USB SSDs
External SSD recovery depends on how the drive connects, whether TRIM is passed through, and whether the drive is encrypted. If the external SSD disconnects or is not detected, software may not be enough.
Do not repeatedly unplug and reconnect a failing drive. Use one stable connection and stop if the device becomes worse.
When a drive image helps
For an aging HDD that still reads but may be unstable, a byte-to-byte image can reduce risk by letting you scan the image instead of the original drive. The right tool and workflow depend on how unstable the drive is, so check current product documentation before assuming imaging is included.
If the drive is physically failing, even imaging can be risky. Stop and consider professional help.
Final recommendation
Use Stellar when formatted media and preview decisions matter. Use Recoverit when broad external-drive and media checks matter. Use simpler tools only for healthy drives and simple deletions. For clicking HDDs or undetected SSDs, do not start with software.