QuickBooks Error Code 100


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“Yesterday, after reaching the office, as I opened my laptop and moved to QuickBooks, an unexpected error message “Error 100 database server not found “08w01” popped-up on my screen. As I don’t have any idea what to do next to resolve the issue, I started to watch tutorial videos on youtube and searched for it on google. After a long while, trying various steps as seen in tutorials and blogs, I finally got some easy steps that solved my problem in a very short period.” 

Therefore, I wish to share with you some of the easiest and simplest methods I used which will help you resolve whenever you face the same. So without any further delay, let’s get started. 

What is QuickBooks Error Code 100? 

QuickBooks POS Error 100 refers to the point of sale (QB POS) application. With QuickBooks Desktop Point of Sale on-board, it is quite feasible for stores to manage their services online. At times due to corruption or update issues, the software displays errors and prevents the user from accessing the program quoting “QuickBooks Error Code 100.”

Causes of QuickBooks Error Code 100

There are various reasons behind the appearance of this error. The following are some of the most common causes of QuickBooks POS Error 100 – 

  • If the QB POS database manager is not functioning properly.

  • When the system does not fulfill the “System Requirements” for operating the QuickBooks POS application.

  • When the installation of Microsoft.NET frame is incorrect or is damaged.

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Symptoms of QuickBooks Error Code 100 

If you experience any of the below mentioned error messages while opening or working on your POS application, this indicates that your programme is experiencing QuickBooks Error 100.  The following messages are like – 

  • “Error 100 database server not found “08w01.

  • “Unexpected error happened. The error is: Value cannot be null. Parameters”

  • “Error: 176120 invalid license key status, key denied”

  • “Configuration system failed to initialize” (while opening the application).

  • “Error: QBPOSShell has stopped working”.

Things that you need to do before eliminating QuickBooks POS Error 100

Before fixing the QuickBooks POS Error 100, you need to do the following, as this will help you to  resolve the error quickly and properly.

  • First of all confirm that your device matches the QuickBooks POS application’s “Specification Requirement.
  • Secondly, ensure that the QBPOS Database Manager vXX has been launched. Follow the below mentioned steps –
  • Go to the start menu, type “field,” then “services.msc,” and then click “Ok.”
  • Right-click on “QBPOS Database Manager vXX” in the window that appears, and then click on the “Start” button. 
  • If you don’t see “Start,” hit the “Restart” button.
  • At last, you must restart your device.

Read More - Complete List of QuickBooks POS Hardware Essential for the Best QBPOS setup

Methods to be Followed to Resolve QuickBooks Error 100 

Now, after understanding the cause, noticing the symptoms and following the steps to be done before resolving the QuickBooks Error Code 100, you can grant the easiest and simplest methods to fix it quickly.

Method 1: Update the QuickBooks Desktop POS Updates – 

This is one of the easiest ways to get rid of “QuickBooks Error Code 100” and you really need to try this out. First of all, Install the Point of Sales Updates. Thereby, following the below mentioned steps, you can install the manual updates:

  • Open the “QuickBooks Desktop POS” application.
  • Select “Product updates page” from the menu.
  • Make sure that “Point of Sales” is selected.
  • Then, to finish the update installation procedure, follow the on-screen directions.

Note: You must reboot/restart your system after applying the updates. In addition, your Intuit Entitlement Client data folder must be renamed.

Method 2: Download the.NET framework again

You can try this effective method by removing the .NET framework and re-download it. Use the below mentioned steps to easily remove it: 

  • Navigate to the Control Panel using the Windows search bar.
  • Uninstall an application from the window.
  • In the search bar, Browse —>Microsoft.NET Framework versions 4.0 and 4.5.
  • Uninstall it by right-clicking and holding down the mouse button.
  • Continue to adhere to the on-screen directions.

Now, you have successfully deleted it from your system. Then, visit the Microsoft Store and download the.NET 4.5 framework (4.0 client and extended).

Method 3: Launch  the QBPOS Database Manager Server Again

For Windows XP :

  • Whenever the error message displays on your screen, click the “OK” key.
  • Secondly, start your computer again.
  • Then, run the “Point of Sale” application.
  • If a problem persists, select “Start” from the menu.
  • Select the “Run” option.
  • In the text area, enter “Services.MSC.”
  • Enter the key “Enter.”
  • The “Services” pane displays a list of available services.
  • Locate “QBPOS Database Manager Server” and select it.
  • Then, click the “Restart” option.
  • If you don’t see the “Restart” button, click the “Start” button.
  • After that, you can restart your device and run Point of Sale software after restarting the QBPOS Database Manager. 

For Windows Vista/ Windows 7 

  • Click “OK” when a message indicating an error displays on your screen.
  • Secondly, you must restart your computer.
  • Thirdly, re-start the “Point of Sale” application then  select the “Start” option.
  • Select “All Programs then click “Accessories.”
  • Now, select the “Run” button.
  • Fill out the text box with “Services.MSC” then press enter.
  • The “Services” pane displays a list of available services.
  • Locate and choose “QBPOS Database Manager and select “Restart”.  
  • Additionally, try restarting your POS software.
  • Later, if the issue still exists, go to the UAC settings.

Method 4: Launch QBPOS Shell Again.

Re-launching QuickBooks POS Shell can also resolve the QuickBooks error 100 issue. You can try this method by following the steps – 

Processor-> Task Manager-> Image Name-> Right-click the QBPOSShell.exe file and select End Process/Close Task Manager.

The following will prevent the POS software from operating in the background and now, relaunch the Point of Sale software. Now, proceed to the following steps, in the event of several QBPOS Shell services:

  • On the computer, right-click the Point of Sale icon.
  • Choose the option Troubleshoot compatibility.
  • Then, choose Try suggested settings, following the directions on the page.

Now, you can restart the device then reinstall the application.

Note : If you can’t locate the “Restart” button, click “Start.”

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Method 5: Attempt to be a “New Windows User” as Well.

Making an effort to be a “New Windows User” will more likely resolve the QuickBooks Error Code 100. Here, are the few easy steps you need to follow-

  • Head over to the “Start” button, then enter “User Accounts” in the search area and press the “Enter” key.
  • Select “Manage User Accounts” from the visited page. Now,  select “Manage Another Account.”
  • Select “Create a brand-new account” and give it any name you like. Select “Administrator” as the user type.
  • Thereafter, log out of Windows and login in using the new user account you established.


We hope the above written article will help you resolve the “QuickBooks Error Code 100”. If you are still experiencing issues with QuickBooks POS Error 100, please reach out to our team for assistance. We are happy to help you troubleshoot and fix this error so that you can get back to business as usual. Have you been able to resolve the problem on your own using one of our solutions? Let us know in the comments below.

Frequently Asked Questions (FAQs)

Q1.How do I fix QuickBooks server busy error?

Ans – QuickBooks will alert you with this issue if there are too many programmes running in the background. To fix this issue follow the steps –

  • Remove all open programmes
  • Search for Software updates.
  • Remove QuickBooks Automatic Update.
  • QuickBooks Desktop should be installed properly.
  • Just use the “Quick Fix my Program” option.

2.How do I fix error 102 in QuickBooks online?

Ans –  When your bank’s website is experiencing challenges like technical difficulties, is undergoing maintenance, or has server troubles, you may receive QuickBooks Error Code 102. To fix this particular error immediately, follow the steps –

  • Confirm your bank login credentials
  • Manually upgrade your bank connection 
  • Continue to verify your credit card or bank’s website.
  • Verify that your account is not a fresh one with the bank.

3.How do I fix error 101 in QuickBooks?

Ans –  QuickBooks error 101 is a technological problem that arises when a person tries to transfer financial transactions from a bank into QuickBooks online. One of the potential causes of the error: 101 is damaged or missing files. To fix this error follow the steps – 

  • To begin, ensure that your Internet connection is stable.
  • To Support Troubleshooting, Restore Internet Connection Settings
  • Change Your Internet Security Application’s Restrictive Settings
  • Upgrade Banking in QBO manually
  • Remove Intuit of Security Software Limitations