The deletion method of redundant fonts and redundant backup files in Vista system has long been known, so this article only introduces some relatively "hidden" deletion methods. Note: Before doing the following, you should back up the Windows registry so that you can restore the system in time after performing the wrong operation. Delete the extra virtual drive icon. When we installed the virtual drive in the system, there will be a CD icon in "My Computer". Even if you don't use the virtual drive in the future, the virtual drive icon will remain. necessary. Let's delete this redundant virtual drive icon: click "Start → Run", type "regedit", press "OK" button to open the registry editor, expand HKEY_LOCAL_MacHINEEnumSCSI branch, there are usually two under the SCSI subkey Sub-keys, which correspond to the virtual drive and the physical drive respectively, delete all the sub-keys under SCSI, and the virtual drive icon will be deleted after restarting the computer. Removing redundant system-level icons System-level icons are icons that are automatically created by the system when you install Windows, such as recycle bins, inboxes, network neighborhoods, etc. Some of these icons are not useful to users, but these icons cannot be directly delete. Open the Registry Editor, expand the HKEY_LOCAL_MacHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\explorer\\Desktop\\NameSpace branch, and delete the unwanted subkeys. The web-based teaching network reminds everyone to close the registry editor. After restarting the computer, you will find that the system-level icons that are not needed on the desktop have disappeared. Remove the extra options in Run If you use the Start→Run menu multiple times, you'll see that its Open window is messy with a lot of commands that are no longer needed. Open the Registry Editor, expand the HKEY_USERS\\.DEFAULT\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\RunMRU branch, and delete the relevant key values of the right window. Remove the extra options in "Find" Expand the HKEY_USER\\.Default\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Doc-FindSpecMRU branch and delete the relevant key values in the right window. Removing extra keyboard layouts Windows is trying to be the darling of the world, so its keyboard layout is suitable for the habits of people of all countries. Open the Registry Editor, expand the HKEY_LOCAL_MacHINE\\System\\CurrentControlSet\\Control\\KeyboardLayouts branch, and we can see that there are various keyboard layouts in Spanish (Traditional), Danish, German (Standard), etc. Without the keyboard layout of these languages, you can delete these subkeys directly. Delete the extra locale similar to the above keyboard layout, and the Windows locale. Expand the HKEY_LOCAL_MacHINE\\System\\CurrentControlSet\\Control\\Nls\\Locale branch in the Registry Editor. The Simplified Chinese user can only keep "00000804". Key values, others can be removed mercilessly.