Service Host Diagnostic Policy. If you want to disable Diagnostic Policy Service, just withdraw the tick mark you put there. Checkout the below shown screenshot which shows high CPU usage from Diagnostic Policy Service.
When this service is disabled, diagnostics will no longer be functioning. The Diagnostic Service Host is used by the Diagnostic Policy Service to host diagnostics that need to run in a Local Service context. If this service is stopped, any diagnostics that depend on it will no longer function.
The Diagnostic Policy service (DPS) enables problem detection, troubleshooting, and resolution for Windows services and components.
The Diagnostic Policy Service enables problem detection, troubleshooting and resolution for Windows components.
Fix "Service Host Local Service Network Restricted" High CPU Usage Подробнее. If you want to disable Diagnostic Policy Service, just withdraw the tick mark you put there. Very frustrating since this only started in the last couple of weeks.