Generate a full system health report with perfmon /report — via Microsoft Learn

Commandlow riskNeeds adminWindows 11Windows 10

perfmon /report runs Windows' built-in System Diagnostics data collector and then opens a report with warnings about hardware, drivers, disks, CPU, memory and network. It's like a free health check that's already on your PC.

Takes effect right away

The easy way

  1. Run the command from an elevated Command Prompt and wait while it collects data.
  2. Check the Warnings section at the top first, then expand the sections below for details.

Command

Run in an administrator Command Prompt / Terminal window.

perfmon /report
Nothing is changed. The report stays available later under Performance Monitor → Reports → System → System Diagnostics.

Sources

Source reviewed
2026-11-02
Link checked
2026-11-02
Tested hands-on
Not by Oddbyte.Me

Oddbyte.Me hasn't tried this on every Windows build, so keep the undo handy.

perfmondiagnosticshealth reporttroubleshooting

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