Which files in C disk can be deleted

1, open the Explorer, navigate to the "C:windowshelp", here is generally the Windows Help file, you can delete all the files inside, right click to Help folder, the right menu appears in the Select "Delete".

2, open the Explorer, navigate to the "C:windowswinsxsbackup", here is usually a backup file of Windows, you can delete all the files inside, right-click the backup folder, the right menu appears in the Select "Delete".

3, other to delete, you can understand the meaning of the folder in C disk, and can be based on the following relevant information to know which documents can be deleted, which cannot be deleted.

├-windows

│├-system32 (System files and hardware drivers that store windows)

││├-config (User configuration information and password information)

││├-systemprofile (System configuration information, for recovery system)

││├-drivers (used to store hardware driver files, not recommended for deletion)

││├-spool (used to store system print files.) including printing color, print storage, etc.)

││├-WBEM (a WMI test program for viewing and changing public information model classes, instances, and methods.) Please do not delete)

││├-ime (used to store system input files, similar to the IME folder under Windows)

││├-catroot (computer-initiated test information directory, including hard software information detected at startup of the computer)

││├-dllcache (for storing system cache files.) When the system files are replaced, the file Protection mechanism copies the files under this folder to overwrite the system files.

││├-grouppolicy (Group Policy folder)

││

│├-system (System folder, used to store system virtual device files)

│├-$NtUninstall $ (each patch to the system, the system will automatically create such a directory, you can delete)

│├-security (System security folder, used to store system-critical data files)

│├-srchasst (Search Assistant folder for System Search Assistant files, similar to msagent folders)

│├-repair (System repair folder, used to store the configuration files needed to repair the system)

│├-downloaded Program Files (download Programs folder, used to store the expansion of IE features such as ActiveX Plug-ins)

│├-inf (used to store INF files.) The most common application of INF files is to provide driver services for hardware devices, and it is not recommended to delete files in them.

│├-help (Windows Help file, can be deleted)

│├-msagent (Microsoft Assistant folder, store dynamic cartoon image, help you to use the system better. Joche is not necessary, can be deleted directly)

│├-mui (MultiLanguage Pack folder, used to hold multilingual files.) This folder is empty by default in the Simplified Chinese system, but it is not recommended to delete this folder.

│├-java (a component that hosts Java operations and its program files.) Delete File not recommended)

│├-addins (System attached folder, a file that holds system-attached functionality)

│├-connection Wizard (Connection Wizard folder, which holds related files for the Internet Connection Wizard)

│├-driver Cache (Drive caching folder, used to store driver files for system-known hardware)

││└-I386 (Windows operating system with a known hardware driver file that can be removed to save space)

│├-temp (System Temp folder, where the contents can be deleted all)

│├-TWAIN_32 (scanner-related)

│├-apppatch (Application patching backup folder, used to store patch files for application)

│├-debug (System Debug folder, used to store the log files of debug modules during system run)

│├-resources (System Resource folder, which is used to hold the System Shell resource file, which is the subject we see on the desktop)

││└-themes (all desktop themes are stored here, you can delete unwanted topics)

│├-winsxs (storing various versions of Windows XP components, reducing configuration problems due to DLL files) │├-ime (Input method information)

│├-pchealth (used to store files that coordinate, configure, and manage the normal running of your computer)

│├-prefetch (a pre-read folder that stores the read-through information of a file that the system has accessed (this information is a new information that is automatically generated by the system when it is accessed) to speed up access to the file, with the extension "PF". You can delete files in this folder)

│├-PSS (used to back up the system boot configuration file, typically backs up the "boot.ini", "System.ini" and "Win.ini" three files, with the extension "backup." If the system's original three files are corrupted, you can recover from this. Delete Not recommended)

│├-registration (Registers a folder that holds related files for the registration of system COM + or other components.) It is not recommended to delete the file here)

│└-downloaded Installations (store some installers that use Windows Installer technology, mainly to fix the program)

├-documents and Settings

│├-default User

││├-application data (Universal application database folder). This is where private data for some of the applications that have been installed is stored.

││└-temp (temporary file directory.) This is where the temporary files generated during system and software operations are stored. Need to be cleaned regularly)

││└-temporary Internet Files (Temporary Internet folders). Need to be cleaned regularly)

│├-all users (all user folders, where changes are valid for all users)

├-program Files

│├-windowsupdate (for Windows upgrades, can be deleted)

│├-uninstall Information (store software counter installation information, delete may cause some software can not uninstall, so can not be deleted)

4, if you feel that you manually delete the trouble, you can use optimization software such as Rubik's Cube Master software, find the "Clean master" tool, and then switch to the top of the "System slimming" tab, and then click on the lower left corner of the interface "system disk Analysis" button to start Analysis system disk After analysis, you can check the box to select the item you want to delete.