Delete files? Hard drive? Recovery?

If I delete a file and then delete it from the Recycle Bin, it's not completely gone. How can I make a deleted file whose name I no longer remember irretrievable? Can I still delete a file that I've deleted from all the Recycle Bins, etc.?

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LukasZander
2 years ago

To ensure that a deleted file cannot be recovered, you need to overwrite the areas of the hard drive in which the file was stored. Since you no longer know the name of the file, the best approach is to safely overwrite the entire free space on the hard drive.

There are various tools that can help you safely overwrite the free space. Some of these tools are:

  1. CCleaner (Windows) – CCleaner is a free tool that not only optimizes and cleanses your PC, but also offers an option for safe deletion of free space. To overwrite the free space with CCleaner, do as follows:
  2. a. Download CCleaner from the official website and install it: https://www.ccleaner.com/ccleaner b. Start CCleaner and click “Tools” in the left sidebar. c. Select “Drive wiper” (hard disk wiper). d. Select “Delete free space only” and select the drive on which the file was stored. e. Under “Safety” select the desired number of overwriting operations (more overwriting operations mean more security, but also more time). f. Click on “wipe” to start the process.
  3. BleachBit (Windows, Linux) – BleachBit is another free and open source tool to clean and optimize your PC. It also offers an option for safe deletion of free space:
  4. a. Download BleachBit from the official website and install it: https://www.bleachbit.org/ b. Start BleachBit and click “File” and then click “Delete Free Memory”. c. Select the drive on which the file was stored, and click on “Delete”.

Note that the overwriting of free space at SSDs (Solid-State Drives) can be less effective than with conventional hard drives (HDDs) due to wear-leveling algorithms and other functions. For SSDs, it is recommended to use the built-in Secure Erase function or the TRIM command to safely delete the entire drive content. However, note that this deletes all data on the drive, not only the desired file.

Tilo2300
2 years ago
Reply to  LukasZander

TRIM Deleted not all files on the hard drive, but only the freely marked storage space.

Besides, the answer sounds kind of like AI.

Tilo2300
2 years ago

Yes. By overwriting the freely declared storage area on the hard drive with dummy data. Windows has the command line tool “cipher” on board. Parameter “/w”. There are also graphic tools for this. With SSDs it is different because of complete but storage technology. Here you should send a TRIM command to the SSD. The SSD manufacturers offer their own tools. Third-party tools such as “O&O Defrag Professional” can be used across the manufacturer, but are paid.

Complete overwriting of an SSD with dummy data is not recommended, as the service life of the SSD suffers and the success cannot be guaranteed. You have to do with SSD’s internal technology.

ZeframC0ckring
2 years ago

By shooting them, about 7 times deletion and 7 x overwriting.

Windows itself does not have this function in the board means. Use third-party software

Tilo2300
2 years ago
Reply to  ZeframC0ckring

Yes, Windows has. The command is “cypher”.

ZeframC0ckring
2 years ago

You can decide what’s safe for you and what’s not, data protection is for everyone. There are enough tools that can restore despite Cipher.exe. 3-7x overwrite only ensures actual non-restorability. This has often been proven by relevant crackers;)

Third-party tools help but continue or a Linux bootable from cd

Tilo2300
2 years ago

What’s not the same?

7x overwrite is unfuge.

ZeframC0ckring
2 years ago

This is not the same in the approach;) Especially since to make sure to shredder 7x deletion and 7x overwrite 🙂 And important to say that doesn’t make it on SSD drives, as they have limited write access and the drive fails earlier.