WinZip 5.5 added the ability to install, try, and uninstall software packed in ZIP files. The user must uninstall both Norton AntiVirus and the LiveUpdate component manually. Sometimes even installing new versions of such plugins does not automatically uninstall old versions. The user must uninstall both Norton Internet Security and the LiveUpdate component manually. Modularity allows site administrators to install and uninstall functionality according to a project's requirements. It could also safely uninstall Ubuntu from within Windows. Norton AntiVirus has been criticized for refusing to uninstall completely, leaving unnecessary files behind. Finally, .ZAP Files do not automatically uninstall when a User no longer requires the software. The Start screen can uninstall apps directly. Microsoft recommends that users who experience problems with the application uninstall it. They recommended that users uninstall the software immediately for protection. Users can uninstall the system service via ADB. Certain issues may also arise when attempting to run or completely uninstall that application. It can list available distributions, set a default distribution, and uninstall distributions. They may uninstall the app or skip days, for instance.