The program cannot be installed for the following reasons: 1. There is a problem with the installation package, such as being incomplete or inconsistent with the signature. In this case, you can try re-downloading and then installing, or use the optimization master to uninstall the original program. Install it later; 2. The system has protected some programs and cannot install updates by itself. In this case, you may need to uninstall them before continuing the installation; 3. The storage space is full. Clean the system garbage and reclaim the storage space.

If not, you can contact Kingsoft to help you solve it