Method 3: Uninstall Total Annihilation via System Restore. Method 2: Uninstall Total Annihilation with its uninstaller.exe. Recommended Method: Quick Way to Uninstall Total Annihilation Method 1: Uninstall Total Annihilation via Programs and Features. How to Uninstall Total Annihilation Completley? So, it's really important to completely uninstall Total Annihilation and remove all of its files. An incomplete uninstallation of Total Annihilation may also cause many problems. Total Annihilation cannot be uninstalled due to many other problems. * Files and folders of Total Annihilation can be found in the hard disk after the uninstallation. * Another process that is using the file stops Total Annihilation being uninstalled. Not all of the files were successfully uninstalled. * A file required for this uninstallation to complete could not be run. * You do not have sufficient access to uninstall Total Annihilation. * Total Annihilation is not listed in Programs and Features. Possible problems when you uninstall Total Annihilation Are you in need of uninstalling Total Annihilation to fix some problems? Are you looking for an effective solution to completely uninstall it and thoroughly delete all of its files out of your PC? No worry! This page provides detailed instructions on how to completely uninstall Total Annihilation.