A. 1. Use a third-party uninstaller tool to remove programs completely. These tools often clean up leftover files and registry entries that the standard uninstallation process misses. 2. After uninstalling a program, restart your computer to ensure all changes take effect before checking the software again.

B. 3. Manually check the installation directory of the uninstalled program to ensure all files are deleted. If any remain, delete them manually. 4. Clear the software's cache or settings if it has an option to do so, as this may help it refresh its program list.