Everyone knows that the C drive in the computer is the system disk, which contains the computer system program files, which are of vital importance to the computer's operating procedures. Generally, the contents of the computer cannot be deleted at will. In order to enhance the computer enthusiasts' understanding and understanding of the C disk file, the editor here summarizes the role and use of most files in the C disk, which may be very practical for novices. What documents is DocumentsandSettings? Answer: It is the system user setting folder, including the documents, favorites, Internet browsing information, configuration files, etc. of each user. Supplement: Don't delete anything inside, this saves all users' documents and account settings. If you delete it, it will restart and you can't log in, especially the defaultuser, allusers, administrator and the file with your current login username. folder. What is Favorites? Answer: It is a favorite to store your favorite URL. You can place URL shortcuts and folder shortcuts in it, and you can create new categories (folders). What is ProgramFiles? Answer: The default path for application software folder software is generally here! Of course, there are some applications of the system itself. What files are CommonFiles? Answer: CommonFiles. This folder contains the files that the application uses to share. It is very important that you can't delete CommonFiles. This file is the operating system package system program and application CommonFiles is the application runtime database file covering more than 1000 Most of the most popular application plugins, patches, etc. Folders are many system files in the commonfiles, can not be arbitrarily deleted, unless you know what to do, useless can be deleted. However, even if you delete useful things, there is no big relationship. At most, some software can't be used, and it will not cause system crash. What is ComPlusApplications? Answer: ComPlusApplications: The folder used by Microsoft COM+ components, which may cause COM+ components to not run after deletion. What file is DIFX? Answer: It can't be deleted. The existing XML data indexing methods can be divided into two categories from the realization idea: structure induction method and node positioning method. Both methods have certain problems. The disadvantage of structure induction method is that the index size is larger. Large and difficult to effectively support more complex queries, and the main disadvantage of the node location method is that it is easy to form too many connection operations. To solve these problems, a new dynamic XML indexing system DifX is proposed, which expands the existing dynamics. The indexing method adopts a dynamic concept of Bisimilarity, which can dynamically determine the structural information stored in the index according to the actual query requirements and optimization requirements, so as to achieve the most effective support for various forms of query. The experimental results prove that DifX is a An efficient and efficient XML indexing method that can achieve higher query execution efficiency than existing XML indexing methods. What is Internet Explorer? Answer: Needless to say, certainly can not be deleted, IE, browse the web! What is KASPerskyLab? Answer: Kaspersky's file package, this is the report of Kabbah. There are many report files in the update file of C:DocumentsandSettingsAllUsersApplicationDataKASPerskyLabAVP6Report, which is very popular. It is good to delete it. 1 Use 360 security guards or Jinshan's own cleaning. Features. 2 Close self-protection and manually delete the files under the report folder. What is Messenger? Answer: The MSN that comes with the system is completely removable. I believe that many people are using MSN, and may have the same experience. After installing the new MSN, you can always open the MSN first, but the new version. Even if the old version is deleted in the system, it will automatically be restored soon after. If you want to completely remove the old version, you can click "Start" -> "Run" -> Code: RunDll32advpack.dll, LaunchINFSection%windir%INFmsmsgs.inf, BLC.Remove What is microsoftFrontPage? Answer: That is the web page editor that comes with the system What is MicrosoftSilverlight? Answer: Silverlight is basically the same software in Adobe Flash, a plugin that runs in the browser. Implement interaction, animation, and more. Support for .Net runtimes using XAML file support. Programfiles is the location of all applications in the Windows operating system, which is normal. In many cases, programfiles may be created to create folders, usually created after the application is installed. You need to provide the folder name before we can say exactly whether it is a useless folder. In general, the folder here cannot be deleted, and if it is deleted, it will affect the system or the application cannot run. What is MovIEMaker? Answer: movIEmaker is a video editing software bundled by Microsoft. My file is also empty. According to speculation, the Ghost version of the system should be optimized for this software. It can be deleted completely, but the system always rebuilds this folder. Can be removed with the unlocker software. The reason you can't delete it is that there is still a desktop process calling this file. It cannot be deleted without unlocking. What is MSBuild? Answer: Not found, it should be system related, it is best not to delete! What is MSNGamingZone? What is MSXML6.0 file? Answer: msxml refers to Microsoft's xml language parser, which is used to interpret the XML language. Just like the html text goes down to the local, the browser will check the Html syntax, explain the Html text and then display it. To use the xml file, you must use xmlparser. But not only Microsoft has, like ibm, sun has its own XMLparser. What is NetMeeting? Answer: It is the MSN file that comes with Windows. If you don't use MSN and Outlook Express, you can delete it. However, it does not occupy much of a place. It is the MSN file that comes with Windows. If you don't use MSN and Outlook Express, you can delete it. However, it is recommended to look at the online uninstallation method. After all, it is safer to use the system's own uninstall method. The NetMeeting folder is the part of the system that comes with remote control. After you delete it, this function cannot be used, but it does not affect the normal operation. However, it is automatically generated because it is built by the system, and some viruses like to lurk in this folder. However, it is not a simple NetUpdateService.exe process that can be solved by deleting the folder. If the user name is system, it should be your automatic update service. If you do not need automatic update, it is best to turn it off, saving resources. What is OnlineServices? Answer: Internet access! Can't delete! What file is Outlook Express? Answer: Outlookexpress is the built-in mail sending and receiving end of Windows. Its function is that you don't have to go to the webpage every time you log in. Just open the outlookxpress and you can send and receive mail! Level: Prophet is software that sends and receives emails. He is a software for sending and receiving emails, developed by Microsoft. What is ReferenceAssemblIEs? Answer: System related! It is best not to delete SigmaTel is what file? Answer: This file is a useful file! This file is the driver of the computer sound card! note! If the files on the system disk don't understand, don't delete them! What is Tencent? Answer: Tencent is the QQ folder. If you don't need it, you can uninstall it from the start menu. If you want to use it, keep it. What is WindowsMediaConnect2? Answer: Program stuff, don't delete it! What is the file of Windows Media Player? Answer: It is a playback software of the system itself! Windows Media Player uses Microsoft Windows Media Player to play and organize digital media files on your computer and on the Internet. This is like loading a radio, video player, CD player and information database into an application. With Windows Media Player, you can listen to radio stations around the world, play and copy your CDs, find videos available on the Internet, and create custom lists of all your digital media files on your computer. In short, it is a multimedia player that combines video and audio in one. What is WindowsNT? Answer: A network operating system has the following characteristics: 1. Add networking capabilities to the operating system to make it an integral part of the operating system's functionality. 2. The system directly supports file copying between hosts on the network, emails between users, support for emulating terminals to log in to remote hosts, and so on. Users do not need to install such network service software on the machine. 3. Since the system supports multiple network protocols, data exchange can be easily realized for various existing networks and network servers. 4. The network has an open structure, and various data transmissions and network drivers used in the network are used. It can be dynamically loaded and unloaded, and different kinds of functional components can coexist. These are all beneficial to the modification and expansion of the network function. What is WinRAR file? Answer: winrar, is a relatively good compression and decompression software, support mouse drag and drop and shell expansion, perfect support ZIP file, built-in program can unlock CAB, ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR , ISO and other types of compressed files; with the estimated compression function, you can get the approximate compression ratio under the three compression modes of ZIP and RAR compression tools before compressing the file; with history and favorites; compression The rate is quite high, and the resource consumption is relatively small, fixed compression, multimedia compression and multi-volume self-release compression are not available in most compression tools; the use is very simple and convenient, and there are few configuration options, which can be completed only in the resource manager. What you want to do; for ZIP and RAR self-release archives (both DOS and Windows formats), click on the property to easily know the compression properties of the file, and if there are comments, you can view the contents in the properties. What is Xerox? Answer: The Xerox folder is installed by XP itself, and it is used for temporary space for some image processing software. The name of the folder is derived from Microsoft's technology licensed from Xerox, which is protected by WFP (Windows File Protection) and cannot be (and is not necessary to) be deleted. ATITechnologIEs is a graphics card control program, related to computer chips, do not move it OnlineServices is a network service folder NetMeeting is MS's first IP-based chat tool, Netmeeting is powerful, in addition to voice, video, it also has text chat, electronic whiteboard, File transfer, program sharing, and more. Can be deleted, however, the folders in this folder are more important, or often used, it is best not to move, if it is not good, it will affect the system, it is not easy to recover.