Preparation and detailed analysis of system garbage removal within 30 seconds

This article describes a widely spread online batch processing of "30 seconds to clear system spam". This article is written from the perspective of a newbie, even if you do not know a little about batch processing, you can also understand this article.

Let's talk about some basic commands used in this batch processing:

@: At the beginning of the command line, it indicates that the command line of this line is not displayed during running (only the current line can be affected );

Echo: The character after this command is displayed;

Echo off: After this statement, all running commands do not display the command line itself;

Del: delete/f: Force delete/s: delete the files in the current folder and all its subfolders/q: confirmation is not required;

Rd: a command to delete sub-directories;

Md: Create a folder;

Pause: running this command will pause the execution of batch processing, and display a prompt of Press any key to continue... on the screen, waiting for the user to Press any key to continue.

Representation of several system variables:

"% SYSTEMDRIVE % \" refers to the disk directory where your system is located. If your system is attached to disk C, "% SYSTEMDRIVE % \" is equivalent to "C :\";

% Windir % = % SystemRoot % = C: \ directory of the system currently started by WINDOWS;

% USERPROFILE % = C: \ Documents and Settings \ current user data variable in the current user folder.

Well, if everything above is clear, then the following is easy to understand.

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