First, some software can't see the taskbar list at runtime, but runs in the background in the form of a process. Commonly used software such as incoming call firewall, SMS firewall, antivirus software and encryption software need real-time monitoring. Therefore, it is certainly impossible to delete the running software; Second, the solution is: 1. Check the process table with the process manager. If you can determine which thread is the process of the program, you can close it. If you can't judge, you can first set the system process not to be displayed. 2. Then close all non-system processes and let the software uninstall normally in program management.