Need to set up a folder and Windows access permissions in QuickBooks for smooth multi-user work and secure data sharing? Learn how to configure Full Control for QBDataServiceUserXX, add Everyone when required, and correctly share company file folders in Windows. This forum topic explains practical steps for Windows 10 and server environments. If permission errors or access denied messages continue, call +1-866-408-0444 to discuss your specific QuickBooks folder and network setup in detail.