対象製品：The Group Policy service, operating in synchronous processing mode, can cause delays with the logon process. This behavior is by design because synchronous processing does not allow the logon processes to complete until Group Policy processing is complete. Read the Details tab of start policy processing events (event IDs 40004007). The nodes IsBackgroundProcessing and IsAsyncProcessing can help you determine the processing mode. Also, success and warning network information events contain the application processing mode. On the Details tab for events with event IDs 5314 or 6314, read the PolicyApplicationMode node. You can use the value displayed to determine the mode of Group Policy application., Each end event displays the elapsed time, in milliseconds, used by the described event. Additionally, you can see this same information in the Details tab of the event message. You can use the ProcessingTimeInMilliseconds node to determine how much time expired when processing each scenario and phase of Group Policy., Certain policy settings take longer to apply than others. Typically, the Group Policy service applies these policy settings synchronously. For example, expect longer Group Policy processing times when deploying a software package to a computer or user. The Group Policy service waits for the software to finish installing before it transitions to the next scenario or phase of processing.