The folder C in the brain file in windows can be deleted (taking XP system as an example): 1, help file, path C: \ Windows \ help; If you don't need help at ordinary times, you can delete files.

2. System sound file, path C:\WINDOWS\Media sound file is mainly used to remind users in the operating system and can be deleted.

3. The desktop background file can be deleted. The path is C:\WINDOWS\Web\Wallpaper.

4. Korean and Japanese packages in the language pack can be deleted, and all packages in the path of C:\WINDOWS\ime can be deleted, only CHIME and CHTIME are reserved.

5. You can delete the standby driver package in the system. The path is c: \ Windows \ DriverCache \ i386 \ driver.cab.

6. Files in the directory where system update files are saved can be deleted. The path is C: \ Windows \ Software Distribution \ Download. After deletion, directly use third-party software tools such as 360 security guards to install vulnerability patches for the system.

7. Files in various temporary folders can be deleted. The path is C: \ Windows \ temp; c:\ WINDOWS \ Tmp； C:\Documents and Settings\ user name \ local settings \ tempc:\ documents and settings \ user name \ local settings temporary internet file.

8. All kinds of temporary files left after 8.bug fixing can be deleted. The path is C:\WINDOWS\system32. You can't see it until Show All Files and Folders is turned on in Folder Options. Everything with a dollar sign ($) in front of the folder name is junk files left after bug fixing. The red circle file in the figure below.

For most users, it is time-consuming and laborious to do these operations manually, and it is easy to make mistakes; You can download the XP Slimming Tool to slim down the system. For users of Win7 system, you can also download Win7 Slimming Tool to slim down the system. draw