Several things happen during the installation of a program, which can help explain why you are having difficulties uninstalling it:
-When you download a program, the files are copied to a specified folder, which is usually somewhere inside the Program Files folder.
-Some files, such as shared libraries (.dll files), will be copied into a folder inside program files called Common Files.
-Other files, such as drivers or shared libraries, are copied into the WINDOWS\System32 and WINDOWS\System32\drivers folders.
-After that the installer makes some changes inside the Windows Registry. This is a database where all the settings and options for the operating system are stored, as well as for any applications or OS components that are programmed to use it. The installer can make changes inside the registry if a shared library needs to be registered or if certain types of files need to be associated with the program being installed. For example, if you install Microsoft Word, then you will also be able to open Microsoft Word documents.
-After this is done, a key is added to the Windows Registry where the Windows Add/Remove tool looks for installed programs.
-During installation, all these operations for installing are logged in a special log file (for example, setup.log), and the installation program usually puts that file inside the application’s folder along with the uninstaller. When a user tries to remove a program through the Add/Remove tool, Windows looks for the registered uninstaller inside the registry and executes it. The uninstaller goes through the log file and undoes all the changes done during installation. That is, it deletes all the files that have been copied, all the Registry keys the installer created, and so forth.
-If there is no log file, or if there is no record of the changes made to the registry the uninstaller might fail to uninstall the program, and will need to be removed by other means.
In short, normally programs are removed using an uninstaller, reading the documentation written during their installation. If for some reason the file that contains these instructions was never produced in the first place, the program will be impossible to uninstall normally using the Windows Add/Remove tool.
When you try to delete files deposited by a malware infection, you might encounter some annoying messages that commonly appeared like “File In Use”, “Error Deleting Files”, “File Access Denied”, etc. Fortunately, these stubborn files can be totally remove from your computer by using Power Eraser, one of the useful best pc optimizer in UPCleaner software. Power Eraser is designed to fix all the issue above by forcibly uninstall the programs you can’t uninstall by Windows and delete their residual files. With Power Eraser, you can uninstall and delete any files without frustration in Windows.
Search for programs
Input the name of program you would like to uninstall in search box and then click on the “Search” icon or press the “Enter” key to search for it.
Refresh
If the program you want to remove was not found, you can click on the “Refresh” icon to have it show up.
Uninstall programs
By clicking on the “Uninstall” button, Power Eraser will start removing the program automatically. Meanwhile, please noticed that the status of the uninstalled programs will be changed to “Uninstallation Complete. Remnants were found”
Delete remnant files
If there are residual files after uninstalling program, you can delete them by clicking on the Clean NOW button, now you have completely removed the program from your computer with the UPCleaner – free pc cleaner.
Please notice that before deleting any files, you must be sure that the files are not required for Windows operating system or other installed programs.
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