2. Open my computer and find the above tools-folder options-View-Hide protected system files and folders. So the system files are hidden.

3. The rest can be deleted.

4. Start the normal operation-all programs-accessories-disk tools-clean disks and clean junk files.

If you want to know more, I'll give you a big pimple. Take a look, it's enough to digest for a while, haha:

I. Folders

All users here record the users of the window and the information such as the start menu and desktop set by these users.

Command this directory has many commonly used DOS commands, such as debug,

Format, etc. Don't underestimate these old Lian Po, you have to rely on them at many critical moments.

Config is used to store hardware configuration files in Windows.

Cursor This is the directory where the Windows cursor is stored.

The desktop is created by programs and documents except the system icons "My Computer" and "My Document".

You can find shortcuts here. If you delete an icon here, the icon on the desktop will be deleted accordingly, such as

If you store files on your desktop, the real world is stored in this folder.

Downloaded program files This directory stores temporary files when downloading online.

Favorites store the contents of favorites.

Font This is the directory where Windows font files are stored. To install fonts, just copy the font file directly.

Please go to this directory.

Help store Windows Help files.

History can keep your IE operation records of the past 20 days by default.

Media here stores the sound files of Windows system, just like the Microsoft signature music issued at the end of Windows startup.

Microsoft voice and so on are stored here.

The offline web page here is a file for offline browsing.

Recently, this is the corresponding start menu in the document menu under the document call history, which will put your recently opened text

The paths of files and pictures are recorded, which is convenient for users to quickly open recently used documents.

When using the Send To command on a file, the directory Send To corresponds to Destination. Can be used as usual.

Add shortcuts with folders, so that you don't have to grab the mouse to look around when copying files in the future.

The start menu corresponds to the start menu of Windows and can be directly managed by changing the directory.

Start menu/program Start menu program

Start menu/program/start automatic operation

INF INF driver script folder

Other INF other driver script folder

Wallpaper web background folder

System file backup folder

System and System32 are two very important system folders, which store Windows system files and hardware drivers.

Important information such as programs.

The tasks here correspond to the planned tasks of Windows, and the newly added tasks will be found in it.

Temp is mainly used to store the directory of temporary files generated during decompression, installation and other operations. Pay attention to cleaning to avoid temporary files occupying hard disk space for a long time.

Internet temporary files are also directories for storing temporary files, but the difference is that it stores temporary files generated when browsing web pages. It can speed up web browsing, but it takes up too much space and needs to be cleaned regularly.

Web This is to store some Web-related things, such as the pictures of blue sky and white clouds in the browsing bar when viewing the Web in the resource manager, the channel screensaver in the screensaver, and the webpage when the server cannot be found in IE browsing.

Application data application data directory

Second, the document.

Ar PEX TCP/IP address resolution tool

Asdexe automatically skips the driver. Through this program, you can check the errors in the system startup process and provide corresponding solutions. When there is a serious problem in the system, you can detect the cause of the failure and choose whether to skip the driver you think is the "culprit".

Calcexe calculator

Windows comes with a CD player.

Charmapexe Character Mapping Table If you want to enter a symbol similar to "①" in Notepad, you can easily solve it by using the Character Mapping Table.

Cleanmgrexe Disk Cleaner can help you clean up junk files on your disk quickly when you don't have enough disk space.

Clipbrdexe Clipboard Viewer If the contents on the clipboard are too large, it will take up a lot of memory. With this program, you can view and delete newspaper clippings.