1. Temporary files generated during software installation
Many software are installed, first to extract their own installation files to a temporary directory (typically Windows folder under the Temp directory), such as WinZip Tools, and then install. If the software design is negligent or has problems with the system, when the installation is over, these temporary files will become not "temporary", a heap of garbage in the hard drive, many times they appear as *.tmp faces, as shown in Figure 1.
In the process of running the software, it usually produces some temporary exchange files, such as *.old, *.bak such as the backup files, anti-virus software or system software to check the hard disk generated backup files, such as Figure 2. Some application software with help or tutorial files (often with. HLP, etc. as the suffix), the operating system in excess of font files. A large number of font files not only the body fat, occupy a large space, but also seriously drag the system and some graphics processing software running speed. In addition, the System Restore folder takes up a lot of disk space.
2. Legacy files after software uninstall
Because most software in Windows uses dynamic-link libraries (DLLs), and some software designs are not mature enough to cause many software to be uninstalled, there are often folders, *.dll files, *.hlp files and registry keys, and all sorts of little-known gadgets left on the hard drive. Become a veritable rubbish, as shown in Figure 3.
3. Temporary files generated by surfing the internet
When surfing the Internet, the browser downloads some of the webpage files to the local machine, which not only takes up the valuable disk space, but also makes the personal privacy public. In addition, there will also be a history, temporary cache files, cookies and other basic useless "waste", as shown in Figure 4.
How to delete a junk file
1. Delete system-generated temporary files
The garbage that Windows generates during installation and use includes temporary files (such as *.tmp, *._MP, etc.), temporary backup files (such as *.bak, *.old, *.syd, and so on), temporary Help files (*.gid), disk Check data files (*.chk), and *.dir, *. DMP, *.nch and other temporary documents. You can use the system's "find" function, these "garbage" from the hard drive to find to remove, the method: The files are all selected after the right mouse button, choose to Delete, as shown in Figure 5. "C:\Temp" and "C:\WINDOWS\Temp" These two temporary folders are also "garbage" breeding grounds, which are stored in the temporary files, can be safely removed.
2. Delete infrequently used files
In Control Panel, go to the Add/Remove Programs window and remove unwanted program components from the Add or remove Windows Components option, as shown in Figure 6. Some program files in the system can also be deleted, such as the Windows 2000 "C:\WINNT\driver cache\i386" directory, there is a size of about 50 trillion, named "Driver.cab" compressed file, this is the system's built-in hardware device driver package. A file called "User.dmp" can make a computer often error-prone and not very useful, or delete it. The deletion of these infrequently used files is the same as the previous paragraph.
3. Delete the System Restore folder
Windows ME/XP System Restore increases the security of your system, but as you keep installing software and creating "restore points," The Restore Backup folder (_restor) becomes larger, wasting a lot of hard disk space. To restore a backup folder Delete, click the System option in the Control Panel, enter the System Properties dialog box to check "Disable System Restore", and then open Registry Editor (Regedit.exe) and layer into "hkey_local_machine/system/ Currentcontroset/services/vxd ", find the Vxdmon primary key below, remove it all, restart can delete" _restor "This large" garbage "file, as shown in Figure 7.
4. Clear some of the running records of junk information
① clear the program name in the run list
When you use the "Start/Run" command of the Windows operating system, we find that there are many commands in the Open box, which are not what we all need, and some of the information is easy to expose personal information. If you want to remove the junk information here, in Registry Editor, expand Hkey-current-user/software/microsoft/windows/currentversion/explorer/runmru in turn. On the right side of the registry, display the information from the Run Drop-down list, to delete an item, right-click the name, select Delete, and be careful not to delete the line where the "default" and "MRUList" are located (see Figure 8).
② clear the file name from the document menu
Select Start]→[settings]→[Taskbar and Start menu to open the Taskbar Properties dialog box. Select the Start Menu Program tab in the dialog box and click the Clear button so that the contents of the document list are cleared, as shown in Figure 9 ③ Delete Boot configuration file
Under Windows operating systems, system startup profiles such as "Autoexec.bat" and "Config.sys" are virtually useless and you can delete them. If you are not sure, do not want to delete them, but for the system cleaner, start faster, it is best to use Notepad to open the two files, the contents of which empty.
④ Remove residue information from Windows Media player playback records
After a long time, you'll find that Windows Media Player's play dropdown box lists the files that have been played, and some of the information is already useless, and the playlist is packed full. The way to remove unwanted information here is to open Registry Editor and find "hkey_current_user/software/microsoft/mediaplayer/player/recentfilelist, the right window will display the playback record, Remove all of these keys and clear the playback record, as shown in Figure 10.
5. Delete legacy files after software uninstall
① Delete Software Installation folder
Locate and right-click the software shortcuts, select Properties, and click the Find Target button in the General tab to quickly locate the software installation directory, such as "C:\Program Files\kuro\kuro.exe", as shown in Figure 11. Next, in the Explorer, locate "C:\Program files\kuro" and delete it.
② Delete junk information in Add/Remove Programs
Uninstall an application from the Add/Remove Programs in Control Panel, but sometimes the program is still in the list, and more and more junk information is accumulating. Delete method: Open Registry Editor, expand Hkey_local_machine/softwaremicrosoft/windows/currentversion/uninstall in turn, and the right side of the screen will show Add/Remove Programs , select the spam item, right-click the value, and choose Delete from the pop-up menu, as shown in Figure 12.
③ Cancel power-on Self boot
If the software you want to remove starts with Windows startup, in Windows 98/XP, run Msconfig, start the System Configuration tool, click the Startup tab to see if there is a "C:\Program files\kuro\kuro.exe" Link, if there is a cancellation can be. This can also be done in Windows 2000, except that you copy the file from Windows 98 or Windows XP to the Windows NT directory, as shown in Figure 13.
④ Delete file association items
In Explorer, select the File Type tab under Tools/Folder Options, locate the file type associated with C:\Program Files\kuro\kuro.exe, and then press Del to delete it, as shown in Figure 14.
⑤ Open the registry and look for keys to uninstall the software
Open the registry, using the Lookup function, in the registry to find software-related key values, find and delete, there may be multiple, then you can use F3 shortcut to continue to find, until all items are deleted, as shown in Figure 15.
⑥ use of professional cleaning waste software
In the same way, we can also delete the playlist spam information in RealPlayer and ACDSee look at the map list information.
"Junk File Cleaner (Fileclear)" is a green free gadget, with only 335KB, junk file Cleaner
It can be used directly after downloading without installation, as shown in Figure 16.
The tool's interface is quite concise, running faster, with the following characteristics: "Scan" the hard disk on all the files with the file extension of the garbage file to find out, one by one, to choose whether to delete; Backup can back up selected junk files to the C:\backdel directory. In addition, there is a Hjl.bat file, double-click it to restore the backup file to the original directory; Add type to add the extension you think is a spam file, note that the form should be consistent with the list listed in the table, the temporary directory file refers to the C:\windows\temp under the junk file, generally safe to delete Internet buffer file refers to the Internet is generated a large number of temporary files, generally after the net into a garbage file, you can delete.
Environmental Guardian is a file that runs under Windows 95/98/nt/2000 Cleanup Software environmental defender
It is characterized by the user can define, modify the software to be cleaned up, and will not be deleted without the user's permission to delete any files, so there is a very high safety factor. The Safeclean interface is very friendly and you should use Safeclean whenever you use Windows. Safeclean supports the multilingual interface (including Chinese, of course), and can change the interface to the desired language at any time. DiskInfo is a companion hard disk analysis software that can help you analyze the use of your hard disk, find the largest subdirectory on your hard disk, and so on. Safeclean features include locating and deleting user-defined file formats, locating and deleting user-defined directories (including the cache directory of Netscape and IE), finding quick connections that are interrupted on the Startup menu and desktop, and reporting progress at any time, as well as multithreading techniques and better algorithms, With the Undo feature, you can recover files that have been incorrectly deleted, as shown in Figure 17.
Delete temporary files generated by surfing the internet will also produce a lot of "garbage", these "garbage" includes the history of the Internet, temporary cache files, Cookies, such as access to the Web site, login username, password or personal data, identity and other information.
① Erase History
The clear method is to go to the Control Panel →internet Options dialog box, click its delete files and purge history option buttons on the General page, or delete temporary Internet files directly under Windows The contents of the folder can be used to clean up the garbage. In addition to the Internet will produce some temporary files, but also to the C:\Windows\Temp directory to remove them, as shown in Figure 18.
② Delete Address bar list records
In the Address bar Drop-down list box will leave the visited site records, delete their unwanted content, you can modify the registry method to complete. Open Regedit in the Start menu Run command to open the registry and expand Hkey_current_user\software\microsoft\internetexplorer\typedurls. All subkeys under this key are historical site records, find unwanted site records, delete their contents can be, as shown in Figure 19.
③ remove spam from the right-click menu
There is a new source code, is in the right menu of their own site name plus, in your right button will appear in the pop-up menu, although not affect the use, but the Long right button menu also hinder the elegant. The removal method is: Open Registry Editor, find "Hkey_current_user\software\microsoft\internetexplorer\menuext", delete the annoying URL, the right button will not appear those Web site name.
④ use 3721 Internet Assistants (not recommended)
Using the "Internet Assistant", we can delete the system after running for a period of time left over the temporary files and a variety of other unwanted files, save disk space, improve the speed of operation, you can in the Address bar Http://assistant.3721.com/?type=clean, Go to the Internet Assistant page, as shown in Figure 20.
"Internet Assistant" can realize privacy protection function, it can help us to erase the Web page information left on the Internet (including Address bar URL, temporary file, history, you entered the user name, password or search key word, etc.). You can also extend this functionality to clear the most recently used document records in the Start menu, the information generated when you visit My Network Places, and so on.
