What is a read only file? Why are the files read only?

Read-only questions are to say: for example, there is a book that you can only read but you can't tear it up and throw it away, etcIf you want to delete it, you can right-click on the question, and click on the corresponding read-only checkmark to try to delete it....You can't just format it....

It may be encrypted, or file protection may be engaged.

In the case that you know the file information.

You can choose to format the USB flash drive directly.

This means that this document can only be opened and read, and cannot be modified or stored. Some important files will be set to read-only status, so as not to accidentally modify the contents of these documents, unless the read-only state is removed, these documents cannot be modified.

Solution Right-click the file once, select "Properties" in the pop-up menu, select "Read Only" in the "Properties" dialog box that appears, and then press "OK". To disable the read-only state, follow the steps above to perform a reverse operation to cancel the "read-only" option.

In addition, you can also set the read-only state of the file or disable the read-only state of the file from the command line: start the Run input, press enter to open the command prompt window, and type attrib

r File Full Path".

Or. attrib

r File Full Path".

You can set the read-only and non-read-only states of a file separately.

The simplest explanation, the so-called read-only, means that it can only be opened to read, and cannot be modified, moved, deleted, or stored.

1. The file has been opened and is now opened twice, which means that the same file has been opened twice at the same time, and the file has been occupied.

2. The other party sent a read-only file solution (take the received file as an excel file as an example): First of all, open the received file, and the file is in read-only mode at this time, select "File" in the upper left corner. Once you open the file interface, select the "Save As" option button.

3. When all received files become read-only, it is usually because the properties of the file or folder are set to read-only, resulting in the inability to modify the operation. Possible causes include that the properties of a file or folder are set to read-only, and you can modify the properties to cancel the read-only status.

4. The reason why the files sent by others are read-only: the file is set with a read-only password, and you need to enter the password to open it normally. The file has already been opened, and when the same file is opened again, it will prompt read-only.

5. This is a new feature of WeChat version 9 that sets read-only permissions to the WeChat cache folder, which can be solved according to the following methods. Or install a lower version of WeChat, turning off WeChat's automatic updates can be completely solved. Click on the bottom left of WeChat, Settings - File Management - Open Cache Folder.

6. Ye Zheng may be due to the following reasons: The permission of the file is set to read-only: the computer that sent the file is set to read-only, so when the file is opened on the recipient's computer, the changes cannot be saved.

The files received are read-only for the following reasons:

1. The file is set with a read-only password, and you need to enter the password to open it normally. Cancellation method: After opening the file with a password, click Review and Document Encryption, and a dialog box will pop up, click Password Encryption to delete the opening password and password.

2. The file has been opened, and when you open the same file again, it will prompt read-only.

3. Use the right mouse button to click on the file to view the properties, check whether the read-only is checked under the file information, if so, uncheck it.

4. The file may also be locked by other software, and the locked file will also prompt read-only, if you don't know what software is occupied, you can use WPS to open the file, and then press the F12 key to bring up the box of Save As, and you can store the file with a new file.

Ways to change the read-only mode of a file:

1. Use the command prompt to remove the read-only attribute.

Command Prompt is a very useful tool in the built-in program of the Windows system, which can complete a variety of computer tasks without opening the corresponding software in a few short lines of commands, which is very convenient.

2. Use the registry to remove read-only attributes.

There are times when the read-only mode of the disk is caused by an error in the numeric data of the registry options, so the registry can be modified to fix such issues.

3. Use Partition Assistant to remove read-only attributes (recommended).

If your hard drive has become read-only due to file system corruption, you can take the method of reformat the hard drive to make it writable again.

However, when you try to format it in the Disk Tube Scramble tool, you will find that the format option is grayed out, and if you try to format it in File Explorer, you will also get an error message saying that the disk is write-protected. <>

There are several possibilities for the file to be read-only:

1. The file is set with a read-only password, and you need to enter the secret code to open it normally.

2. The file has been opened, and when you open the same file again, it will prompt read-only.

3. Use the right mouse button to click on the file to view the properties, check whether the read-only is checked under the file information, if so, uncheck it.

4. The file may also be locked by other software, and the locked file will also prompt read-only, if you don't know what software occupies, you can use WPS to open the file, and then press the F12 key to bring up the box of Save As, and re-store the file on it.

Documents are categorized by purpose.

Depending on the nature and purpose of the document, documents can be divided into three categories:

1. Yu Huichun system files.

This refers to a file that is made up of system software. Most system files are only allowed to be called by the user, but not allowed to be read by the user, let alone modified; Some system files are not directly available to users.

2. User files.

Refers to a file consisting of a user's source**, target, executable, or data. The user entrusts these files to the system for safekeeping.

3. Library files.

This is a document consisting of standard subroutines and commonly used routines. These are files that can be called up by the user, but not modified.

Classification by form.

In this way, documents can also be divided into three categories:

1) Source files. This refers to a file that consists of the source program and data. Files that are usually formed by source programs and data input by terminals or input devices are source files. It is usually made up of ASCII codes or Chinese characters.

2) Target file. This refers to a file that consists of a source program that has been compiled by a compiler of the corresponding language, but has not yet been linked by a linked program. It belongs to binaries. Typically, the suffix used by the target file is ", obj.

3) Executable files. This refers to the file that is formed by linking the compiled target ** through the linker. <>