I accidentally deleted some files with DOS, is there a way to recover them?

In the process of using the computer, it is inevitable to encounter machine replacement, poisoning, system crash, upgrade, etc., and sometimes it is necessary to format the hard disk, and it turns out that some important data is forgotten to backup, and it is too late to regret it! Is there really no way? No, it can be restored!

So why can the data be recovered? It mainly depends on how the hard drive data is stored. Let's take a look at the principle of data storage on the hard disk.

The hard disk is composed of a set of platters with a base layer of metal materials, and a magnetic coating is attached to the platter, which reads and writes data by the rotation of the hard disk itself and the movement of the head. The outermost circle of these is called the "0" track. It records a series of most important information such as the specifications of the hard disk, the model, the master boot record, the directory structure, etc.

Every document we store on the hard drive is registered here, which is equivalent to the household register of the document. When reading a file, you must first look for the initial sector of the file with 0 tracks, and then follow the map to find the nest of the file. But deletion is different, the system only marks the deletion standard for the file information with zero tracks.

But the file itself was not cleared. It's just that the space occupied by the file is shown as free in the system, and the next time you store a file on the hard drive, the system will prioritize the real white space, and only after these areas are used up will the space actually occupied by the deleted file be overwritten. In addition, even after the hard drive is formatted (such as format), as long as it is rescued in time, there is still great hope.

So you can find some software to recover deleted files to get back the files you want, provided that you have not overwritten the partition where the deleted files were deleted, and if you perform an overwrite operation, the chance of recovering them will be very small. Here we recommend finaldata Chinese Enterprise Edition, a very useful tool to retrieve deleted files.

Is System Restore on? If you don't open it, you can only use software to recover, I introduce you to use the super data recovery tool"easyrecovery professional "Very easy to use! The hard disk can be recovered even if it is not afraid.

There are two ways to delete files under DOS:

1. Use the del command to delete one or more files; If you want to delete the directory and its files, use the deltree command, which is an external command to DOS. Enter del in the DOS prompt, then add a space, the space is followed by the file name, if it is deleted in the current directory, you do not need to indicate the path, if you want to delete the file in the specified directory, you need to re-file the path.

2. In the DOS environment, you can also use the DOS version of the tool software to delete the files you need to delete.

1. Recover files in ** station under DOS.

When we delete some files by mistake and find that we can't enter Windows, then we have to recover files from ** station under DOS. Reboot into DOS mode (floppy disk or disc boot if necessary) and type CD at the DOS prompt

After recycled, go to the C: recycled folder, which is a hidden directory where the files we want to recover are placed in the head (if the files you want to recover are originally in the D drive, the corresponding directory is D: recycled, and so on).

With the dir a command, you can list a bunch of hidden files starting with DC (these are the files to be recovered.

However, because Windows changed the file name when moving the file to the ** site, it is still necessary to retrieve the original file name. The original file name can be found in the info2 file in the recycled directory. info2 is a binary file, and each deleted file has a record (800 bytes) in the info2 file, in which you can find the file name, and the rest of the information is not ASCII characters, so we don't have to care.

And the file names are in order, the first file name is dc1* The original file name and suffix of the file remain the same. If the directory is deleted, there is a ??? called dc under recycled

directory, you can use the same method to retrieve the original directory name. But recovery is far less convenient than recovery under Windows, and everyone has to be patient.

Second, delete the ** station Chinese under DOS.

Sometimes, we also have to actually delete files that we really don't need to take up too much valuable hard drive space. In general, we delete it by right-clicking on the "** station" and then selecting the "Clear ** station" command. According to the author's use, sometimes there are more files in the "** station", and it takes a certain amount of time to delete it, looking at the hard disk light and listening to the crisp hard disk sound, I really feel a little ......And some files are still stubborn and can't be deleted at all!

In fact, we can quickly and completely delete the files in the "** station" under DOS. The specific method is as follows (the following operation assumes that Windows is installed under C: Win98, if your Windows is installed in a different folder, please modify it yourself):

1.Click "Start" > "Run", and fill in "Command" in the Run dialog box to enter the DOS window;

2.Copy C: Win98 Command

c: directory;

3.Enter the C: recycled folder with cd command (called directory under DOS);

mul；5.Type exit to fall back into windows.

The above operations can also make a batch file of DOS, but be sure to think twice before using it! Because using this method will cause your files in the ** site to never be recovered!

Windows 2000 and Windows XP versions generally do not have direct access to DOS, if your computer is formatted in a non-FNT format, you can use a Windows 98 disk or a DOS boot disk to enter.

Commonly used dos commands are dir

w p displays a list of files; *.Only the list of all files,W refers to the column display,P is full of a letter to pause the screen,Press any key to continue to display the next screen。 As. dir

Displays all files and subdirectories in the current directory.

CD drive letter: ] path ].

Turns the current path to the specified path, for example:

1. Go from the current C area (commonly known as the C: disk) to the root directory of the D area: cdd:

2、cdc:\windows\temp\

Go the current path to the Windows temporary folder (in the DOS state, all the files in the folder can be deleted).

3. If the current path is C: Windows, go to the temp path below it, and you can use the relative path:

cdtemp

rd folder name.

Deletion refers to the folder (called the path under DOS), which requires the folder to be empty, that is, there are no files.

del.* Delete all files in the current directory of Hail Pai (files under subfolders cannot be deleted).

del filename.

Deletes the specified file.

del.*/s/y

Deletes all files in the current directory and its subdirectories, including the current directory and subdirectories.

If you are not familiar with DOS commands or do not know the purpose of each folder and its files, and are only for anti-virus, it is recommended that you use DOS anti-virus software.