Fix QuickBooks Error 100 in POS Software

● When you receive error dialogue box, you have to select the Ok button
● Next step is to reboot your PC
● Now, attempt to launch the Point of Sale application
● If the error persists, there is a separate procedure for different Windows Operating Systems
For Windows XP
○ Go to the Windows Start >>> Run
For Windows 7
○ Go to the Windows Start >>> All Programs >>> Accessories >>> Run
● In the empty field, you’re supposed to type the services.MSC followed by hitting the Ok button
● Once done then click QBPOS Database Manager vXX >>> Start (where XXXX denotes the version of QBPOS that you’re currently using)
● In case, if start is unavailable then you need to restart.

● Navigate to the Start menu in Windows
● In the search bar, type “User accounts”
● After that, press the Enter key
● Choose “Manage user accounts” from the drop-down menu
● Now, select “Manage another account” from the menu
● Next step is to choose “Create a new account” from the drop-down list
● Make a name for this account, like “Test”
● The “User Type” should be “Administrator”
● Remove your Windows account
● You can log in again once you’ve finished creating and logging out the user account
● Finally, open the Point of Sale to see if the problem still exists.

It is necessary to ensure that all QuickBooks Desktop POS updates have been installed. To install manual updates, follow these steps:
● Start the “QuickBooks Desktop POS” application
● Next, go to the Product updates page
● Make sure that “Point of Sales” is selected as the product
● To complete the manual update installation procedure, follow the on-screen instructions
● You must reboot the system after installing the updates
● In addition to that, the Intuit Entitlement Client Folder must be renamed.

You can troubleshoot QuickBooks Error 100 by closing and restarting the QBPOSShell. You can do it by using the Task Manager. In the steps below, we’ll show you how to do it:
● To begin, close all tabs associated with “Point of Sale” software and press “Ctrl + Alt” Delete” from your keyboard
● Next, select the “Start Task Manager” if necessary
● Select “Processor” from the drop-down list
● Sort the results alphabetically by clicking on the “Image Name” column
● Do a right-click the “QBPOSShell.exe” file and select “Open”
● Select the “Complete Process” option
● Now, you can close the Task Manager tab.
This will bring the background services to a halt. You can then start using POS software.

Important Note: If you detect several QBPOSShell services, follow the Troubleshoot Compatibility procedures.

Troubleshoot Compatibility
● On the Desktop, right-click the “Point of Sale” icon
● Select the “Troubleshoot compatibility” option from the drop-down menu
● Select the “Try suggestion settings” from the drop-down menu
● Follow the instructions that appear on your screen
● You can reboot your device once you’ve finished altering the recommended settings
● Then restart Point of Sale to see if the problem has been resolved.

After you’ve removed QuickBooks Desktop Point of Sale software, you’ll need to remove the.NET foundation. You can then reinstall both the .NET framework and the QB Point of Sale software.

You can remove .NET Framework 4.0 and 4.5 by performing the below steps:
● Type “Control Panel” into the Windows search box
● When the Control Panel shows in the results, click on it
● Now, select the “Uninstall a software” from the drop-down menu
● Find the “Microsoft .NET Framework 4.0 and 4.5” and double-click it
● Select the “Uninstall” option from the menu
● After done with that, press the “Next” button
● Now, follow the on-screen instructions.

With this, the .NET Framework 4.0 and 4.5 will be removed from your computer. Users must also download and install the .NET Framework 4.5. You can accomplish this by doing the following:
● From Microsoft’s website”, download “.NET Framework 4.5”
● Make sure you get both the 4.0 Client and Extended versions
● On your PC, save the downloaded file
● Double-click on the file to open it
● Follow the instructions on your screen
● You can reboot your computer after successfully installing the .NET Framework 4.5 on your system.
If you have any problems installing the .NET Framework 4.0 and 4.5 on your Windows PC, please contact Microsoft or get assistance from an IT professional.

You can try uninstalling and reinstalling the QuickBooks Desktop Point of Sale software if you get a QuickBooks Error 100.

Note: Before uninstalling Point of Sale software, make a backup of your data, save any necessary files, and close all the running applications.

Users can now uninstall QuickBooks Desktop Point of Sale software via the Control Panel using the methods below, depending on their Windows version.

Windows 10
● Type the “Control Panel” into the Windows search box
● When the “Control Panel” shows in the results, click on it
● Next step is to move to the “Uninstall a software”

Windows 8
● Select the “Start” from the menu options
● “More Settings” is located farther down
● After that, click on the “Control Panel”
● Select the “Uninstall a software” from the drop-down menu

Windows 7
● First, click on the Windows Start from the menu options
● Next, “Control Panel” is where you should go
● Choose the “Uninstall software” option from the drop-down menu.

You can accomplish the following once you’ve entered the Control Panel (Programs and Features) window:
● Right-click on the “QuickBooks Point of Sale XX” (The XX represents the software year)
● Select the “Uninstall” option from the menu
● If the “User Account Control” window appears, select the “Continue”
● To successfully delete the software, follow the on-screen prompt instructions.

You can rename the folders listed below after you uninstall QuickBooks Desktop Point of Sale software from your Windows computer:
● Rename the folder “QuickBooks Point of Sale XX”
● This must be kept at the following address:
○ C:\Program Files\Intuit\QuickBooks Point of Sale XX
○ QBPOSDBSrvUser folder located in C:\Users
○ C:\ProgramData\Intuit\QuickBooks Point of Sale XX folder

You can also remove your QBPOSDBSrvUser Windows login once you’ve finished renaming these files and folders. This is the step-by-step procedure:
● On your keyboard, press the keys “Windows + R”
● The “Run” dialogue box will then appear
● In the text field, type the “User Accounts” followed by pressing the Enter key
● Choose “Manage user accounts” from the drop-down menu
● Next, select the “Manage another account” option from the menu
● Choose QBPOSDBSrvUser from the drop-down menu
● After that, select the “Delete Account” from the option available
● To verify your activity, click the “Yes” button.
This will remove the QuickBooks Desktop Point of Sale software, rename the (QuickBooks POS) directories, and erase the QBPOSDBSrvUser account. You can then restart your device to make the modifications reflect. The software can be reinstalled later.

Restarting the QuickBooks POS Database Manager Service is one of the most effective ways to resolve the issue. Depending on your Windows version, you can follow these steps:

In Windows 7 or Vista
● Click the “Ok” button when an error shows on your screen
● Next, start your system again
● After that, restart the “Point of Sale” program
● Now, select the Windows Start >>> All Programs
● After that, go to the Accessories and then select the “Run” tab
● In the text field, type “Services.MSC”
● Moving forward, press the “Enter” key
● The “Services” pane displays a list of available services
● Locate and click on the “QuickBooks POS Database Manager Service”
● Once done then select the “Restart” option
● If you don’t see the “Restart” button, click the “Start” button.

In Windows XP
● When an error message shows on your screen, click the “Ok” button
● Next step is to re-launch your computer
● After that, run the POS software
● Click the “Start” menu if a problem persists
● And then select the Run” tab
● In the text box, type the Services.MSC
● Once done then press the Enter key from your console
● In the “Services” window, you’ll find a list of services
● Locate and select the “QBPOS Database Manager Service” option
● Select the “Restart” from the drop-down menu
● If you don’t see a “Restart” button, click “Start”.
You can restart your PC and launch Point of Sale software after the QBPOS Database Manager Service is restarted.