What to do right now
- Stop using the affected drive: close programs that save, pause cloud sync and do not download or install anything there.
- Look for copies that cost nothing: Recycle Bin, cloud recycle bins, backup drives and Previous Versions.
- Do not run CHKDSK, defragment, format or reinstall Windows, and switch off a drive that clicks or grinds.
- Recover with a portable tool run from USB and save everything to a different physical disk.
The first-10-minutes checklist
Freeze the drive
Close programs that autosave, pause OneDrive, Dropbox or Google Drive, and stop copying files to the drive. If the lost files were on an external drive or memory card, simply unplug it safely and put it aside until you are ready to scan.
Check copies that need no scan
Look in the Recycle Bin, the web recycle bin of any cloud service, a backup drive and the Previous Versions tab of the parent folder. These checks only read data, so they cannot make things worse, and a backup is always more complete than a scan.
Do not install anything on the affected drive
Installing a recovery program, a browser update or anything else on the same drive writes new files into free space, which is exactly where the deleted data sits. Use another PC or another drive for downloads.
Skip CHKDSK, defrag and format prompts
If Windows offers to scan and fix the drive, or says the disk must be formatted before use, choose Cancel. Repair tools rewrite file system structures, and formatting creates new ones, which can destroy the records that recovery relies on.
Power off a noisy drive
Clicking, grinding, beeping or a drive that keeps disappearing points to a mechanical problem. Turn it off and leave it off. Every power-on can deepen the damage, and a professional lab is the safer route for irreplaceable data.
Run a portable tool from USB
On another PC, extract the FileFix Ultimate portable ZIP to a USB stick, run it from there and open Deleted file recovery. The scan opens the source read-only. For a drive that reports read errors, create a drive image first and scan the image.
Save results to another physical disk
Choose an external drive or a second internal disk as the destination. Saving recovered files back onto the same drive can overwrite files you have not recovered yet.
Why the first minutes matter so much
When a file is deleted, the file system only marks its space as free and its record as unused. The content stays in place until Windows hands that space to something new. On a quiet external drive this can take weeks; on a busy system drive, browser caches, updates and temporary files can reuse space within hours.
Solid-state drives behave differently. Most internal SSDs receive TRIM commands that tell them which blocks are free, and the drive may erase those blocks in the background soon after deletion. That is why recovery from an internal SSD often fails even when you act quickly, while USB sticks and SD cards, which rarely support TRIM, usually give better results.
Why CHKDSK and defragmenting make it worse
CHKDSK is meant to make a damaged file system consistent again, not to rescue files. To do that it may delete broken records, truncate files and move orphaned fragments into a FOUND.000 folder with meaningless names. Those records are often the only place where original file names and folders were stored.
Defragmenting and drive optimisation move data around to fill gaps, writing straight into the free space that holds deleted files. Windows runs Optimize Drives on a schedule, so on a hard drive with valuable deleted data it is sensible to avoid leaving the PC idle and running for long periods before you recover.
Should you shut down the PC?
For an external drive or card, unplugging it is enough. For the system drive C:, the question is harder, because Windows keeps writing logs, updates and caches while it runs. If the lost files are valuable, shut down normally, then either connect the disk to another computer or boot from a rescue USB so that Windows on that disk does not start.
If the files are less critical and you need the PC, keep using it lightly, avoid big downloads and run the recovery as soon as possible from USB. Do not restart repeatedly hoping the files will reappear; each boot writes to the disk without bringing anything back.
When even a careful start won't help
- Data that was already overwritten before you noticed cannot be recovered by any software.
- An internal SSD with TRIM may have erased deleted blocks before you could react.
- A full format, as opposed to a quick format, writes zeros over the whole volume on Windows 10 and 11.
- Drives with mechanical damage need a recovery lab; software cannot fix heads or motors.
How FileFix Ultimate fits these first steps
- The portable ZIP runs from a USB stick without installation, so the affected drive receives no new files.
- Scans are read-only, and saving to the same volume is blocked; another partition on the same disk requires explicit confirmation.
- Disk health & tools shows S.M.A.R.T. indicators in plain language and can make a drive image that skips bad sectors and can resume later.
- Free for personal use, with no recovery limit, no account and no upload, so you can start immediately.
FileFix Ultimate is free for personal use, works offline and never writes to the drive you are recovering from. Business use needs a one-year licence per PC. Check the signature before you run it.
Frequently asked questions
Is it safe to keep browsing the web while I decide what to do?
On the drive that lost the files, it is better not to. Browsers write cache files constantly, and on the system drive those writes go into free space. Use a phone or another computer to read up on recovery.
Windows says I need to format the disk. Should I?
No. Cancel the prompt. It usually means the file system cannot be read, and the data is often still there. Scan the drive first and format only after you have saved what you need elsewhere.
Can trying another USB port or cable hurt?
For a drive that is silent and simply not showing up, another cable or port is low risk and often solves the problem. If the drive clicks or grinds, stop plugging it in and leave it off.
How soon do I need to start the recovery?
As soon as you can do it safely, but a careful setup matters more than a few minutes. A drive that is not being written to does not get worse while you prepare a USB stick and a destination disk.