The Startup Impact column in Windows 11 Task Manager helps users understand how much each startup app affects boot time. Normally, apps are labeled as Low, Medium, or High impact, making it easier to decide which programs to disable for faster startup.
However, some users notice that one or more startup apps show “Not measured” instead of an impact rating. This can be confusing, especially when trying to optimize system performance. The issue does not usually indicate a system problem but rather that Windows has not collected enough data to calculate the startup impact.
Fixing the Startup Impact Not Measured issue in Windows 11 involves allowing Windows to record startup behavior, checking startup settings, and ensuring system services are functioning correctly. The steps below explain all effective solutions in detail.
How to Fix Startup Impact Not Measured in Windows 11 Task Manager
Before applying the fixes, note that Windows measures startup impact over multiple boots. If an app was recently added or Windows was recently updated, the status may correct itself after a few restarts.
1. Restart Windows 11 Multiple Times
Windows needs multiple boot cycles to calculate startup impact.
- Save all work and restart your PC.
- Log in normally and allow the desktop to load fully.
- Repeat the restart process two or three times.
- Open Task Manager > Startup apps.
- Check whether the Startup Impact value is updated.
New or recently enabled apps often show Not measured initially.
2. Ensure the App Is Enabled at Startup
Disabled apps cannot be measured.
- Open Task Manager.
- Go to Startup apps.
- Check the Status column.
- Ensure the app showing Not measured is Enabled.
- Restart the PC and recheck the impact value.
Windows only measures enabled startup apps.
3. Allow Windows to Fully Load After Startup
Shutting down too quickly prevents measurement.
- Restart your PC.
- Wait until all startup apps finish loading.
- Avoid shutting down or restarting immediately.
- Use the system normally for a few minutes.
- Open Task Manager and check Startup Impact again.
Windows needs idle time after login to collect data.
4. Disable Fast Startup
Fast Startup can interfere with startup measurement.
- Open Control Panel.
- Go to Power Options.
- Click Choose what the power buttons do.
- Select Change settings that are currently unavailable.
- Uncheck Turn on fast startup.
- Save changes and restart the PC.
Disabling Fast Startup allows Windows to perform a full boot and measure impact correctly.
5. Check Startup Apps in Windows Settings
Some apps are managed outside Task Manager.
- Open Settings.
- Go to Apps.
- Select Startup.
- Find the app marked as Not measured.
- Toggle it off, then turn it back on.
- Restart Windows and check Task Manager again.
This refreshes the startup registration for the app.
6. Update the Startup Application
Outdated apps may not report startup behavior correctly.
- Open the affected application.
- Check for updates within the app.
- Install the latest version.
- Restart Windows 11.
- Review the Startup Impact column again.
Updated apps integrate better with Windows startup tracking.
7. Update Windows 11
Windows bugs can affect startup measurement.
- Open Settings.
- Go to Windows Update.
- Install all available updates.
- Restart the computer.
- Check Task Manager after boot.
Updates often fix Task Manager reporting issues.
8. Restart Windows Management Instrumentation Service
Startup impact data relies on system services.
- Press Windows + R, type
services.msc, and press Enter. - Locate Windows Management Instrumentation.
- Right-click it and select Restart.
- Close Services and restart the PC.
This service is required for performance data collection.
9. Perform a Clean Boot
Third-party services can block startup tracking.
- Press Windows + R, type
msconfig, and press Enter. - Go to the Services tab.
- Check Hide all Microsoft services.
- Click Disable all.
- Restart the PC.
- Check Startup Impact in Task Manager.
If the value updates, a third-party service may be interfering.
10. Accept That Some Apps Cannot Be Measured
Not all startup apps report measurable impact.
- System services may show Not measured permanently.
- Very lightweight apps may not generate enough data.
- Apps launched by scheduled tasks may not be tracked.
In these cases, the status is normal and not an error.
Final Thoughts
The Startup Impact Not Measured status in Windows 11 Task Manager is usually not a problem but a sign that Windows has not yet collected enough startup performance data. In most cases, restarting the system a few times and allowing Windows to fully load resolves the issue automatically.