This detection rule identifies attempts to deploy an AppX package that has been blocked by local computer policy on Windows systems. The specific events tracked include EventIDs 441, 442, 453, and 454, which correspond to various notifications from the AppX deployment server regarding policy enforcement. Understanding and responding to such blocks can be crucial in environments where software deployment needs to be tightly controlled. Organizations can reference Microsoft documentation and community resources for troubleshooting information, and adjustments to the computer policy can be made if legitimate deployments are being hindered. The specificity of these event IDs helps to discern potential unauthorized attempts to install applications that may violate corporate or security policies.