• Here, it is necessary to first visit the following online link to download the external patch file on the system: ‘’https: //downloads.quickbooks.com/app/qbdt/products’’
• Thereafter, simply obtain the ‘Windows Task Manager’ by tapping the ‘Ctrl + Alt + Delete’ keys on the keyboard & instantly utilize the ‘Processes’ tab to choose the following services: ‘QBPOSShell.exe’, ‘qbpos.exe’, and ‘QBPOSDBService.exe.’
• Instantly tap the ‘End Task’ button & carefully launch the ‘Start’ menu to search for the ‘services.msc’ file through the on-screen search bar.
• At this point, you must identify & right-click the ‘QuickBooks Desktop Point of Sale XX’ icon present on the ‘Services’ window where ‘XX’ denotes the precise edition of this application.
• Next, tap the ‘Stop’ tab & restrict the background execution of QBPOS on your system.
• Now, open the QBPOS folder (‘C: \Program Data\Intuit\ QuickBooks Point of Sale XX\UPDATE\’) & choose all files through the ‘Ctrl + A’ keys, following which you must hit the ‘Delete’ button.
• In the final step, run the external patch file that you downloaded in the first step to complete the entire process, and you will be able to install QBPOS successfully.

Method 2: Carry out the successful re-installation of QBPOS on the computer to tackle this problem 

• Go to the ‘Control Panel’ window available on your system & utilize the ‘Programs & Features’ menu to successfully identify the icon of ‘QuickBooks Desktop Point of Sale XX’ on the screen.
• Next, you have to right-click the same icon to select the ‘Uninstall/Change’ button & you will follow the correct steps to uninstall ‘QBPOS’ from your computer.
• Just thereafter, you will go to the following page (’https: //downloads.quickbooks.com/app/qbdt/products’) to acquire & install the latest version of QBPOS on the computer.