QuickBooks Error 1330 comes when there is invalid data signature, which mainly occurs when you try to make an installation of QuickBooks POS on your system. The second cause is due to when you install new version of POS on your collection. You can easily eradicate QuickBooks Error Code 1330 by uninstalling the POS software. All of your corrupted files will get deleted with this. The second solution is to delete the data in the product update folder. If your error still occurs, then we would advise you that you can restart the system and then update the POS through an external update file. Now, uninstall and reinstall the POS software. This is how you can fix QuickBooks Error 1330. Call 1-888-986-7735 our QuickBooks specialists to terminate any QuickBooks errors of yours. You will be surely get answers.