Can you retrieve the deleted files by mistake? The key is whether you have taken this step.

I. Symptoms: Hand shaking, files gone

Empty the Recycle Bin, Shift+Delete directly delete, format the disk with important data, and the partition suddenly prompts "Format is required to use"-these situations can be encountered every day. First, let's say the conclusion:Most deleted files can be retrieved, but whether they can be retrieved depends on your first action after deletion.

II. Cause analysis: delete ≠ disappear, but "write" will kill it

To understand recovery, first understand what deletion does.

File system (NTFS, exFAT are the same) management data like a book directory: the file body is the body, directory records "this file is called, where, how much space." When you delete or format, the system just erased the directory record, mark this space as "free"--The text remains intact.Until new data is written in and the "free" space is covered.

Therefore, recovery software can retrieve files: it does not look at the directory, directly scan the data characteristics on the disk, and re-spell the text. The number one reason for recovery failure is overwriting: after deleting, continue to download, save files, install software, new data falls into the "free" area, old files are overwritten, and gods cannot save them.

This is the key step: stop writing immediately. Don't save anything on that disk, don't install recovery software on this disk, don't download movies to "test it." If it's a file on the system disk, it's best to shut it down and scan it on another computer.

One bad news: SSD error deleted basic cannot be saved back. SSD has TRIM mechanism. After the system tells SSD that "these blocks are not used," SSD master will quickly empty these flash blocks in the background to maintain performance. Generally, the data will disappear physically within a few minutes to a few hours.

III. Self-help steps: find them in this order, don't try them randomly

Step 1: Check the recycling bin first. Normal deleted files are all there, right click "Restore". If Shift+Delete or empty Recycle Bin, skip to step 2.

Step 2: Find a backup. Think again: Has this file been sent to WeChat, saved to the network disk, and entered the work group? The received files of WeChat PC version are stored in "Documents\WeChat Files" by default, many people don't know. If there is backup, don't bother. Recovery is always risky. Backup is zero risk.

Step 3: Determine the medium and timing. Mechanical hard drive, U disk, SD card deleted by mistake and not written again, you can use software to try;SSD deleted by mistake, skip the software directly sent for repair; deleted after a large number of written, software scan out is mostly fragments.

Step 4: Software recovery (mechanical media only).Install recovery software toAnother plate.(For example, if the system disk file is deleted by mistake, it will be installed in the U disk to start). When scanning, select the partition where the file is deleted by mistake. After scanning, preview first and then check--files that can be previewed normally are intact. Recovered filesMust be saved to another disk, absolutely cannot save back to the original disk, otherwise it is equal to the second overwrite. Free tools recommended Windows File Recovery or Recuva, enough for simple deletion scenarios.

Step 5: Special handling of misformatted cases. Format as long as not written, almost all the data is still in, but restore according to the file system structure reorganization directory, more complex than simply mistakenly deleted, software operation grasp is not recommended to send repair directly, to avoid their repeated scanning disk mess.

4. When must I find a professional recovery

Don't waste time on software when:

• High data value (wedding videos, engineering drawings, accounts, codes), cannot withstand failure;
• Formatting the entire partition by mistake, or formatting is prompted when the partition is lost;
• Misdeletion on SSD, time in hours;
• I scanned once and didn't find it, or restored the wrong position to cause coverage;
• The hard drive itself has abnormal noise and bad sectors — repair the disk first or restore it first. If the order is wrong, the data will be lost.

Professional recovery by media read-only mirror, and then do recovery on the mirror, the original disk does not write, this is the most essential difference with their own software. See the overall processData Recovery OverviewMechanical hard drive related.HDD data recovery.

V. Fee Reference

The above is Guangzhou Panyu market in 2026, recovery success only charge, unsuccessful do not charge any fees.

6. Real cases

In May 2026, a customer formatted the entire external hard drive containing wedding videos--it was originally formatted for another disk, and the wrong disk was selected. Fortunately, he realized the mistake immediately after formatting, and did not save any files in it. After sending it for mirroring, he reorganized it according to NTFS structure, and recovered all videos in one hour. The size was 68GB, and all files were intact. The customer charged RMB 400. The customer said that the RMB 400 bought back was "a record once in a lifetime."

In the same year, there are counterexamples: after deleting the error, I scanned it twice with software, and also sent several movies to the original inventory. The recovered videos are all fragments that cannot be played, and only a small part is saved in the end. Remember: the first thing after deletion is not to download the recovery software, but to stop.

7. Local Service Portal

We are located at No.3-8 Jinlong Road, Dalong Street, Panyu District, Guangzhou, Panyu District, Nansha District. Tel: 18825126836 / 020-39029800, Mon–Sat 09:00-18:00.