Change the association method of files and programs

When opening a file in Windows, the system will automatically call the corresponding program to open it. But sometimes we do n’t want to use this program to open this file, so we have to change the association between the file and the program. There are some methods for changing the association in the "Computer News", but by modifying the registry, you can also find a file and program that you can modify at will The associated method.

Run Regedit, you can find two primary keys under HKEY_CLASSES_ROOT, "*" and "Unknown", the content under the "*" primary key corresponds to all types of files, and the content under the "Unknown" primary key corresponds to unknown types of files, That is, when you double-click a file of unknown type, the "Open with" dialog box pops up. All we have to do is copy all the content under "Unknown" to the "*" primary key. Expand the "Unknown" primary key, the content under it is the key value AlwaysShowExt and the primary key shell, the primary key under the shell primary key is openas, the primary key under the openas primary key is command, and each primary key (except command) has a default key value "unset key Value ", the content of the key under the command primary key is" C: \ WINDOWSundll32.exe

shell32.dll, OpenAs_RunDLL

% 1 ", copy these contents under the" * "primary key, pay attention to capitalization and spaces, and delete the" Unknown "primary key, exit the registry editor, and you are done.

At this time, when we double-click a file with the left mouse button, the system will still call the currently associated program to open it, and when we right-click a file, we will find that there is an "open method" in the shortcut menu, select It can select the program you want to use, if you want to change the association, just check the "Always use this program to open this type of file" check box.

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