try windows start button>run enter msconfig and hit enter

check the start up tab, and uncheck anything that says QB or intuit, save and reboot

Resolution for 'by itself issue: 'Hoewdo I get Quickbooks Pro to stop opening by itself?' available: Yes.

The by itself issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the by itself issue yourself by looking for a resolution described in the article. If it is a complex by itself issue or you are unable to solve the issue, you may contact us by clicking here or by using other by itself support options.

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