"An error occurred opening snapshot" Process Monitor

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Each time I run a new instance of the Process Monitor, a dialog box pops up stating that "An error occurred opening snapshot", this error prevents the capturing of any events. Pressing the capture button or Ctrl+E reproduces the error message as well

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Merav Kochavi On BEST ANSWER

In order to resolve this error you need to clear the Logfile registry key entry.

  1. Close all instances of Process Monitor.

  2. Open Regedit.

  3. Find the Logfile registry entry located under

    For 64 bit version: HKEY_CURRENT_USER/Software/SysInternals/ProcessMonitor/
    For 32 bit version: KEY_CURRENT_USER/Software/SysInternals/ProcessMonitor32/

  4. Locate the key named 'Logfile'.

  5. Right click on the key and select 'Modify'.

  6. Set the Value data to an empty string and click 'OK'.

  7. Launch Process Monitor - the issue should be resolved.