
Please try again when your computer is not in Safe Mode or you can use System Restore to return your machine to a previous good state. The Windows Installer service is not accessible in Safe Mode. If you try to uninstall, you will get the error similar to this (Windows XP has a slightly different message): Only the basic files and drivers necessary to run Windows are started in Safe Mode, and unfortunately, by default you can’t uninstall any software that is packaged with Windows Installer. Security software sometimes requires Safe Mode to completely remove itself because protected files are in use in normal mode. If you’ve installed some software and suddenly Windows has stopped working or become unstable, the logical thing to do is boot Windows into Safe Mode and then try to uninstall from there. MSI files and several developers such as Kaspersky use it to pack their software for users to install and uninstall. Another popular one is Windows Installer which uses. There are many types of installers around such as InstallShield, InnoSetup, Wise and NSIS.

This is because software nowadays is becoming more and more complex and requires registering OCX or DLL files, adding or changing registry keys, installing driver files, dropping files into the appropriate places and etc.

Whenever you install a piece of software in Windows, most of the time it will come with its own dedicated uninstaller that allows you to safely remove the program from your computer.
