QuickBooks Error 15106 is one of the most common 15XXX series of issues that affect QuickBooks. QuickBooks Error 15106 mostly affects the update function, and anytime a user tries to update QuickBooks or payroll, the error message "Error 15106: The update program is corrupted, or Error 15106: the update application cannot be started" appears. Unlike other 15XXX series issues, the QuickBooks payroll update issue is caused by a lack of administrator rights and firewall restrictions on the QuickBooks update service. In this post, we've discussed the causes of QuickBooks Desktop issue 15106 as well as how to resolve it
