When trying to install a program update for QuickBooks, Error 1306 occurs. It may also include the following: "Another application has exclusive access to [filename]". Even though this error is displayed, the update is successful.
This can be caused when another QuickBooks process, such as Financial Statement Designer (FSD), is running in the background. Even though QuickBooks is closed, parts of the program processes continue to run. The process would be visible in Windows Task Manager if the Processes tab is clicked. Any process that begins with qb could potentially cause this error. In some cases, a damaged installation may cause the error too.
Stop all QuickBooks processes before attempting to update the program. If the issue occurs because of a damaged installation, the program must be repaired.
Note: Terminating some process can cause damage to other programs or even your operating system. If you are unsure of which processes to terminate, please consult a computer expert or simply reboot the computer.
If you must repair your program, use the following steps: