QuickBooks Desktop Payroll Error 15270 is a common error that could prevent users from downloading and installing updates for the payroll service. You can resolve it by verifying if your subscription is active, or by setting Internet Explorer to your default browser. In case you are unable to resolve it with these methods, you are welcome to contact QuickBooks Error Xpert at our QuickBooks error support number 1-888-986-7735. It is a toll-free calling number that should be able to assist you with ease.