This POS error 1330 occurs whenever you are installing this software. And QB POS error 1330 is not a software error , instead its an windows error. To resolve this, first of all uninstall Quickbooks POS completely and clear all temp file of the windows. Then rename the file QBPOSDBSrvUser folder and delete QBPOSDBSrvUse file. Then delete the account from the control panel of your computer and restart the computer to reinstall Quickbooks POS software. For further assistance Call Quickbooks point of sale technical support at 844-888-4666 or visit a website to get valuable free information.More details: How To Resolve POS Error 1330 With Quickbooks Point Of Sale Technical Support.