QB Error 15106 is a payroll update error, which means that something is stopping the software from updating all versions of QuickBooks Desktop. You will get one of the following error messages that will appear on your screen: “Error 15106: The Update program cannot be opened” or “Error 15106: The Update program is damaged”. In this blog, you will get to know the causes of QuickBooks Error 15106 along with the solutions. Also, we have discussed the ways to find out QB error code 15106.