Losing files on Windows is one of those things that still manages to blindside people in 2026. You hit Shift+Delete without thinking, or you format a USB drive assuming it was empty, or an external HDD just stops being readable one day. It happens constantly, and the first instinct, panic, is exactly the wrong move.
I’ve dealt with enough of these situations on actual Windows machines to know the outcome almost always comes down to the same two things: how fast you stopped using the drive, and whether you understood what was actually happening to your data before you started clicking around trying to fix it.
The free tool I keep coming back to for everyday users is Stellar Data Recovery for Windows (Free Edition). It recovers up to 1GB at no cost and, this matters, it doesn’t lock the actual recovery behind a paywall the way a lot of “free” tools do. You scan, you preview, you recover. No surprise walls halfway through.
The Part Most People Get Wrong
I wish more people knew before they started googling solutions: deleting a file doesn’t erase it. Not immediately, anyway.
What Windows actually does is remove the file’s entry from the file system and flag that space as available. The data itself just sits there until something new gets written over it. That’s the entire reason recovery software works at all, it reads those blocks directly and reconstructs what was there.
On a regular hard drive that you’ve stopped using, that window can stay open for a surprisingly long time. Days, sometimes. On an SSD, though, it’s a different situation. Modern Windows runs something called TRIM in the background, it’s a cleanup process that proactively wipes deleted sectors on SSDs to keep write speeds up. In practice, that means deleted data on an SSD can become unrecoverable within minutes. Not hours. Minutes.
External SSDs and USB-connected drives sometimes delay TRIM, so there’s occasionally a bit more breathing room there. But not much.
The moment you realize something’s gone: stop using that drive. Don’t save anything to it, don’t install anything on it, don’t even browse it heavily. Every write operation after deletion is working against you.
What Actually Causes This Stuff
Worth going through the common scenarios, because what happened affects which recovery approach makes sense.
Accidental deletion is the obvious one. Wrong folder, Shift+Delete, empty Recycle Bin without checking, it’s embarrassingly easy to do. Shift+Delete is the one that really hurts because it skips the Recycle Bin entirely. In my testing on a Windows 11 NVMe SSD, recently Shift+Deleted office files came back cleanly within ten minutes. That’s the best-case scenario for any recovery software.
Formatted drives are trickier, but not hopeless. Quick format only wipes the file system index, the actual data underneath is typically still sitting there. Deep scan tools can pull back a solid chunk of it. Full format is harder to work with, but even then, recovery sometimes works.
RAW drives are something I see constantly with external drives. Windows suddenly can’t read the drive, throws up a prompt asking if you want to format it, and everything looks gone. In almost every case I’ve encountered, the data is still there, the file system got corrupted, not the data itself. This is where a good recovery tool earns its keep.
Failed Windows updates mess up more than people realize. Interrupted updates can corrupt partitions, wipe desktop files, or make user profiles completely inaccessible. I’ve seen it happen after storage driver conflicts specifically. Not common, but when it happens it’s particularly aggravating.
External drive corruption from yanking a drive without ejecting it first, or just an unstable USB connection, is another frequent one. Usually recoverable.
Check Windows First
Two minutes before you install anything third-party:
Recycle Bin, just check it. Right-click, Restore. It sounds obvious but people skip it.
Previous Versions, right-click a folder, Properties, Previous Versions tab. Only works if System Protection was turned on before the deletion happened. Most home machines don’t have it enabled, but worth a look.
File History, if you set this up beforehand with a backup drive, you can restore through Control Panel. Most people haven’t set this up, which is unfortunate.
Windows File Recovery, Microsoft’s free command-line tool from the Microsoft Store. It’s capable and has no data limits, but there’s no interface, no preview, and the syntax takes some getting used to. If you’re comfortable in Terminal it’s worth trying. If you’re not, it’s a frustrating experience.
When these don’t work, and for most permanent deletions, formatted drives, and RAW partitions they won’t, you need dedicated software.
What Stellar’s Free Version Actually Gives You
The free version doesn’t artificially hobble the scan to push you toward paying. You get full scan results and file preview before recovering anything. The restriction is purely the 1GB recovery ceiling. For a lot of real-world situations, a deleted work folder, a batch of photos from a trip, that ceiling is enough.
It covers NTFS, FAT16, FAT32, and exFAT and multiple file formats which handles basically every Windows-formatted drive you’ll realistically encounter. Works on internal HDDs and SSDs, NVMe drives, USB flash drives, SD cards, and external hard drives. I tested it on a Samsung NVMe SSD, a SanDisk USB drive, and an older WD external HDD, all three scanned without any issues.
File type support is broad: Office documents, PDFs, JPEGs, RAW camera formats (CR2, NEF, ARW), MP4, MOV, ZIP, PST files, and several hundred more. One thing I’ll specifically mention, it handles BitLocker-encrypted drives as long as you have your recovery key. A lot of free tools skip BitLocker volumes entirely, which is increasingly a problem since Windows 11 enables BitLocker by default on many machines.
How to Actually Run a Recovery
Install it on the right drive first. This is where people make the most damaging mistake. Don’t install Stellar on the drive you’re recovering from. If the deleted files were on C:, put the installer on a USB drive, an external drive, anything else. Installing software writes data to disk, on the wrong drive, you could be overwriting exactly what you’re trying to get back.
Pick your file types. You can narrow the scan to Documents, Photos, Videos, Audio, or Emails, or just scan for Everything. Targeted scans finish faster, photo-only scans on SD cards in my testing wrapped up noticeably quicker than full scans of the same card.
Select the right drive. If a partition is missing or showing as RAW, use the “Can’t Find Drive” option. That worked reliably during my RAW drive testing, the drive showed up and scanned normally even though Windows couldn’t mount it.
Start with Standard Scan. It uses the file system index to find recently deleted files. Fast, typically five to fifteen minutes on most drives, under five minutes on a 512GB NVMe in my testing. If it finds what you’re looking for, great. If it doesn’t, or if the drive has been formatted, move to Deep Scan.
Deep Scan is a different beast. It reads raw sectors and reconstructs files from signatures rather than relying on the file system, so it works on drives where the structure is damaged or gone entirely. It’s also much slower, about forty minutes on a 64GB USB drive, one to three hours on a 1TB HDD. But it consistently recovers more than Standard Scan in complicated situations.
Preview before recovering. You can browse photos, open documents, spot corrupted files before committing to anything. On a long list of recovered files with auto-generated names, this is genuinely useful.
Save to a different drive. Never recover files back onto the drive you just scanned.
What Happened When I Actually Tested It
Test 1, Shift+Deleted office files on a Windows 11 NVMe SSD: Deleted a folder of DOCX and XLSX files permanently, immediately ran Standard Scan. Everything came back, original filenames, folder structure intact, files fully previewable. Cleanest possible scenario, and it handled it exactly as expected.
Test 2, Quick-formatted 64GB USB drive: Quick-formatted a drive with photos and videos on it, then ran recovery. Standard Scan got partial results. Deep Scan recovered JPEGs, MP4s, and ZIP files with solid accuracy, I’d estimate around 85–90% of the original files came back. Some had auto-generated filenames rather than originals, which is normal when the file system index is gone. Larger video files were inconsistent, especially from parts of the drive that had been reused before the format.
Test 3, RAW external HDD: A 1TB WD drive that Windows flat-out refused to mount, showed as RAW after an improper ejection. Stellar detected it through Physical Disk Scan and ran a Deep Scan that took about three hours. Photos and documents recovered well. Some older video files came back partially corrupted, which you see when sectors start going unstable. Overall, better than I expected from free software on a drive that Windows had essentially written off.
Standard Scan vs. Deep Scan, When to Use Which
Standard Scan works from the file system and is fast. It keeps original filenames and folder paths. Start here every time.
Deep Scan ignores the file system, reads raw sectors, and pieces files back together from signatures. It’s slower, often returns files with generic auto-generated names, and will sometimes surface files from previous uses of a drive, which can be helpful or confusing depending on your situation. Use it when Standard Scan comes up empty, or when you’re dealing with a formatted or heavily corrupted drive.
One practical thing to know: Deep Scan on a large HDD will run for hours. Don’t start it right before you need the machine for something else.
What Actually Determines Whether It Works
How quickly you stopped using the drive, the single biggest factor, by a wide margin.
SSD TRIM, can close the recovery window within minutes on modern systems. On SSDs, timing genuinely matters.
Quick format vs. full format, quick format leaves data largely intact underneath. Full format is significantly harder to recover from.
Physical drive condition, clicking, grinding, repeated disconnects, drives that won’t spin up consistently. Stop immediately if you hear or see any of that. Software can’t fix mechanical failure, and continued spin-up attempts can make physical damage worse. That’s a professional lab situation.
When to Stop Trying and Call Someone
Recovery software has limits worth being honest about. If a drive is making mechanical sounds, clicks, grinding, anything rhythmic and abnormal, put it down. Don’t keep plugging it in hoping it’ll work. Every attempt risks further damage.
Fully overwritten data is gone. No software recovers overwritten sectors. Severely corrupted partitions with failing controllers or damaged firmware often exceed what consumer tools can handle. RAID arrays and NAS devices need specialized tools, free consumer software isn’t built for that.
Is It Safe to Run?
Yes, and for a specific reason: it operates in read-only mode during scanning. It reads the drive but doesn’t write anything to it. The only write operation happens when you explicitly choose to save recovered files somewhere. In my usage, CPU and memory usage stayed stable throughout long scans, the installation was clean with no bundled junk, and nothing unexpected ran afterward.
The one rule that matters: don’t install recovery software on the drive you’re trying to recover from.
Common Questions
Can I recover permanently deleted files for free? Yes, if the sectors haven’t been overwritten. This free version handles up to 1GB free recovery.
Can files come back from an SSD? Sometimes. TRIM narrows the window fast. Act immediately.
Does this actually work? For recent deletions on HDDs and quick-formatted drives, consistently yes. SSDs vary depending on how quickly TRIM ran.
How long does scanning take? Standard Scan: 5–15 minutes. Deep Scan: anywhere from 40 minutes to several hours depending on drive size and condition.
Is 1GB of free recovery enough? For documents, photos, and PDFs, usually yes. Large video files will push past that limit quickly.
Bottom Line
Stellar Data Recovery Free is actually useful software, not a demo designed to frustrate you into buying something. The 1GB ceiling is real, and for a lot of everyday data loss situations, deleted work documents, lost photos, a corrupted USB drive, it’s enough.
It works best on recently deleted files, quick-formatted drives, and RAW external drives on Windows. It struggles where most free tools struggle: SSDs with TRIM already executed, physically damaged hardware, and anything past the 1GB cap.
But honestly, the software matters less than the timing. Stop using the drive the moment you realize something’s gone. That one decision, made quickly, does more for your recovery odds than any tool you pick afterward.