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After a period of use, the computer system will produce various junk files. The more they accumulate, the more space is occupied by the disk system, and the efficiency of other applications will be affected, resulting in more storage operations. File fragmentation. So how to safely and efficiently carry out a thorough cleaning of your love machine? Here is a little bit of experience for your reference:

Familiar files, folders and programs

Computer enthusiasts usually install a lot of games or software on their computers. His own unique file naming methods, especially the names related to game products: such as "COMMANDOS", "RICH4", "DELTAFORCE", etc., are well known to many players. This gives us a basis for confirming whether a file or folder can be safely deleted. A considerable amount of software does not necessarily completely delete all the files and folders created during its installation after being uninstalled normally. In this case, users need to manually delete them in time.

Known junk file types

The system and most applications generate temporary files during the run, they all have a common extension type, which generally belongs to these types of files. All can be safely deleted. Using this method to identify junk files is the safest and most effective, and the software that is commonly used to clean up junk files is often used. These file types include:

*.~*/~*.*/*.*~/*.---/*.TMP/*._MP standard temporary files;

* .OLD/*.SYD temporary backup file;

*.CHK Disk error data found and saved by ScanDisk;

*.GID Search index data generated by HELP file; Br>

MSCREATE.DIR temporary directory information;

0???????.NCH temporary newsgroup cache data;

Many software products put "*.BAK" also I think it is a file type that can be deleted, but in my experience, I suggest you not to delete such files at will, because some of the available backup data generated by the application is named after the extension (such as the backup file of the ULTRAEDIT program). Deletion will bring a lot of inconvenience. So when deleting a BAK file, at least make sure you know where it came from and there is no need to keep it.

Known Deleteable Folders

1. "C:WINDOWSTEMP"

It is the standard temporary folder used by the system and various applications. Because various data and files temporarily stored here cannot be cleaned up in time, a large amount of useless files accumulated after a period of time will occupy valuable disk resources, so users should periodically delete the junk files under the path to ensure the system operation efficiency. There is a more convenient way to automatically clean up the system when it starts. Add the following two lines to the AUTOEXEC.BAT file in the root directory of the C:

"C:WINDOWSCOMMANDDELTREE /YC:WINDOWSTEMP"

"MD C:WINDOWSTEMP"

2.INTERNET Temporary Folder

In the "INTERNET Properties" - "General" column - "INTERNET Temporary File Settings", the user can set the storage location of the folder and the amount of disk space used. Although these temporary files are used for caching to improve browsing speed, more and more temporary data will undoubtedly consume a lot of disk space, so it is recommended that users can clean up regularly and choose the appropriate disk space for their use. Value, generally according to the size of the C drive between 40M-100M is enough. Note that the cleaning of the INTERNET temporary folder cannot be directly deleted manually, but should be done using the 'Disk Cleaner' in the 'System Tools', or via the "INTERNET Properties" - "General" column - "Delete Temporary Files" Command implementation.

Filterable deleted files and folders (* is a wildcard)

In addition to the types of junk files that can be safely deleted as described above, there are some file types that can be safely deleted, just need After filtering, not all files of this type can be deleted.

1.*.LOG

LOG is the extension of the standard record file. Many programs use this type to name their own information about the execution or running status, such as '金山网镖'The record entry file is 'KAVPFW.LOG'. If you don't have special needs, you can choose to delete these LOG files, or select the option to turn off logging files in related programs, or periodically clear some unusable and bulky record files. Note that the ‘INSTALL.LOG’ and ‘UNINSTALL.LOG’ LOG files must be excluded when deleting such files, as most programs will use them during the uninstall process. In addition, some LOG files located under the WINDOWS path should be reserved, such as: POP3.LOG, SMTP.LOG, etc.

2.*.TXT

Text files are probably the most widely distributed file types in computers, although they take up a lot of disk space, but because they are too scattered, the number is obviously It is too big. Depending on the user's requirements, the text files that can be selected for deletion will be different. The author believes that at least the text file of ‘*LOG*.TXT’ can be safely deleted. Some programs use such text files to name their record items without using the LOG extension, so users can handle them and the above LOG files, but for WINDOWS paths and such files under the root directory (such as :BOOTLOG.TXT, SETUPLOG.TXT, etc.) Still be cautious. Other text files such as ‘LICENSE.TXT’, ‘REGISTER.TXT’, ‘ORDER.TXT’, etc., which are not impeding the normal operation of the program, are also deleted.

3.*.REG

REG is a registry data file. Most users know that such files cannot be deleted or modified at will, but there are exceptions. Registry cleaning tool software (such as "Super Rabbit Registry Optimization", etc.) can help users slim down the registry, clear a large number of invalid data entries in the table, and simultaneously generate backup registry data files, improving the security of use. . However, after a period of time, the REG type files used to restore the original data occupy more and more disk space. Using the ‘*UNDO*.REG’ parameter to search for such files on the disk, users can safely delete backups that were retained earlier. In most cases, this will not only affect the security of the tool operation, but will free up more space resources.

4.*.INI and empty folders

INI type files are files that hold various application initialization parameters and setting information. Incorrect deletion of them will affect the normal operation of the program. However, there is a case where some programs cannot delete their corresponding INI files in time after uninstalling. As more and more software is installed, more and more such INI files are lost, and most of them are stored. Under the WINDOWS path. Users can clean up regularly, but the principle of secure processing should be that you do know which program the INI file was generated from and the program has been uninstalled.

An empty folder is a folder in which no files are stored, except for hidden files. Usually they are created by related programs and can be safely removed if they haven't been used for a long time.

Principles for Handling Junk Files

The most important principle for finding and deleting junk files is security, followed by efficient use of disk space. Do not delete files of unknown type easily. All of the deletable type files mentioned above should be retained if they have read-only, hidden or system file attributes, unless you are sure that you can safely delete them. Some types of files are more complicated (such as text files), the number is large and most of the files are small. In this case, it can be left unprocessed, and it does not take much time to judge the possibility of safe deletion.