...the C\Windows\Installer folder. Look for files with .msi file extensions. There will quite a few. You can hover you mouse over the file...or RIGHT click on the file, then choose "Properties" to determine which program it installs/uninstalls.. If you find the correct .msi file for your "Phone Tools" software, then double click on it and uninstall the program..

After it's uninstalled, you can leave it that way or reinstall it, whichever you choose.

Hope this helps.