Fixing High CPU Usage Caused by Diagnostic Policy Service in Windows 10
Introduction The Diagnostic Policy Service in Windows 11 is responsible for collecting system performance data and troubleshooting information. However, users often report this service causing unexpectedly high CPU usage—sometimes spiking up to 25% even at idle. This guide walks through a proven solution shared by the community to resolve this issue permanently. The Problem: Symptoms: The service svchost.exe (Diagnostic Policy Service) uses 10–25% CPU at idle. Rebooting temporarily reduces CPU usage, but it spikes again afterward....