Most of the users of the Windows operating system are faced with the need to remove programs. If the program is registered in the Add or Remove Programs menu, then it will not be difficult to remove it. However, it happens that the program is not in the "Installation …" and the Uninstall utility is not there either. An inexperienced user will simply send an unnecessary folder to the trash can, and this can cause errors in the system. In addition, reinstalling the application may fail. The solution to these problems may be to edit the registry.
Instructions
Step 1
We are looking for an entry in the registry that the program left there during its installation, then delete it. But this way we have no room for error. Deleting the wrong entry can severely damage the system. To prevent this from happening, make a backup copy of the registry, that is, write the files C: / Windows / User.dat and C: / Windows / System.dat to removable media. You will quickly restore the system to work with healthy files at hand. After rebooting the PC, you will be able to rewrite the saved files in MS DOS mode directly to the C: / Windows directory.
Step 2
How does the editing of the registry go and how is it done? The registry can be edited using the regedit.exe utility, which is included in the standard set of Windows software. You can run it through the Start -> Run menu by typing regedit in the command line. All system data is located in just 2 hidden files stored in the Windows directory. They are user.dat and system.dat. The registry is a hierarchical structure consisting of several branches, which are divided into many keys.
Step 3
There are only six main branches in the registry:
HKEY_CLASSES_ROOT Includes file matching types, shortcut information, and OLE.
HKEY_CURRENT_USER is a link to the HKEY_USERS subkey, which has the same name as the username;
HKEY_LOCAL_MACHINE - contains information from a specific PC. This includes information about installed software and hardware and all settings;
HKEY_USERS - settings of all PC users are stored here;
HKEY_CURRENT_CONFIG is a link to the HKEY_LOCAL_MACHINE subkey, whose name corresponds to the name of the currently active user;
HKEY_DYN_DATA - This branch points to the portion of the HKEY_LOCAL_MACHINE section required by Plug & Play devices.
