Diagnostic Startup (Windows 10)


If you are experiencing any of the following issues a diagnostic start up will help identify the cause and potentially resolve the issue entirely.

  • Inability to consistently boot into Windows
  • Applications crashing or locking
  • Overall system slowness or unresponsiveness
  • Unable to open files or applications
  • Unable to shutdown correctly
  • Unable to put system to sleep or system waking from sleep without prompt
  • Windows updates failing
  • Very slow boot time
  • Numerous applications starting up when first logging in

Many other issues can be traced using the diagnostic startup, this may be one of the most useful diagnostic steps when troubleshooting a systems problems.

How to enable Diagnostic Startup

This section will cover the process required in order to initiate a Diagnostic startup.

Step 1:

In the lower left corner, click the Start menu icon (Windows icon) and immediately start typing to search; there’s no need to click anywhere else, it will automatically searchstart menu

Step 2:

Type “msconfig”msconfig

Step 3:

The best match should be a “System Configuration”, right click that and select “Run as Administrator”results

Step 4:

The System Configuration application will now launch, verify you are on the General tab

Step 5:

Select the radial button labeled “Diagnostic startup”system config

Step 6:

Click “OK”


Step 7:

After clicking “OK” the following prompt will display. You are required to perform a restart in order for the settings to take effect. You can choose to “Restart” (now). Alternatively if you choose to “Exit without restart” this will allow you to save any open files/programs and then restart at your leisurerestart

Step 8:

Once you reboot your system it will now be running in Diagnostic mode so now it’s time to identify the cause of your woes. In order to revert out of a Diagnostic startup simply reverse this process. When in the System Configuration window select “Normal startup”. If the purpose of this troubleshooting step was to determine the underlying cause of a major issue, you can try enabling non Microsoft services (on Services tab) one at a time then restarting the computer until your issue is replicatedsystem config



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