The following error occurs when installing QuickBooks:
Error: The operating system denied access to the specified file: qbooks/setup.exe.
To install QuickBooks without checking for third-party applications:
Note: For Downloaded programs the QuickBooks.MSI file can be found by going to Start >Run >%temp%>quickbooks finanacial software>qbooks>quickbooks.msi
If this solution does not resolve the issue, you can read discussions and post messages and questions relating to your issue on the Intuit QuickBooks Community site for free or you can contact a technical support agent for additional guidance. Fees may apply.