Technical Fixes to Overcome QuickBooks Error 2147221164: 3 DIYS

QuickBooks error 2147221164, also known as the "class not registered" error, is a common issue that many of you can experience. It often appears out of nowhere and interrupts tasks such as accessing payroll reports, preparing tax forms, and others.

This error can happen due to several factors, such as incomplete software installation, conflicts with other issues or files on your device. This error is a run-time issue that occurs suddenly while working in QB.

It usually indicates that the required DLL files needed to start the application sync session are not properly registered on your device.

When this happens, QB displays the following error message on the screen: " Error: 2147221164(80040154) Class not registered has occurred in the following procedure: StartQBSession." 

Let's discuss the reasons for the occurrence of error 2147221164 on your QuickBooks Desktop:

• The application is not updated
• The system is not compatible with the application
• When Microsoft Excel is not functioning properly
• Before the MS Office, you need to install the QB application

Note:- Printer Not Activated Error Code -20 occurs when system permissions or registry issues prevent PDF printing from accounting applications. 

Now, we have to briefly understand the proven procedures to eliminate error code 2147221164 on your QuickBooks Desktop:  

• First, you need to access the QBDT > move to the Help menu > and choose Update QuickBooks Desktop under the drop-down box
• Select the Update Now tab under the Update QuickBooks Desktop Window
• Verify the Reset Update checkbox to clear all previous update downloads
• Click the Get Updates option and then hit OK to continue
• After downloading the update, the procedure has been finished, and QuickBooks will ask to restart the computer to install it
• At the end, close and reopen QuickBooks to begin the installation

• For Windows 10:
  • First, you have to right-tap the Start menu > select Apps and Features on the pop-up menu
  • Select the Microsoft Office product that you want to fix> and pick Modify
  • Depending on your office's installation type, you'll get to see the following repair options. Go through the following steps suitable for your installation type
• Click-to-run:
  • In the How would you like to fix your Office Programs Window, choose Online Repair > Fix to ensure everything gets fixed
  • Moreover, the faster Quick Repair option is also available, but it only detects and then replaces corrupted files
• MSI-based:
  • Choose Repair in the Change your installation > and then hit Continue
• For Windows 11:
  • Right-click the Start button in the lower-left corner and pick Installed Apps on the pop-up menu
  • Select the Microsoft Office product you want to repair > hit the ellipses, and pick Modify
  • Depending on your office's installation type, you'll see the following repair options. Consider following the steps suitable for your installation type
• Click-to-run:
  • To repair your Office Programs Window, pick Online Repair > Repair to ensure everything gets fixed. Moreover, the faster Quick Repair option is also available, but it only detects and then replaces corrupted files
• MSI-based:
  • Choose Repair in the Change your installation, and then hit Continue
  • At the end, go through the on-screen instructions to complete the repair

Also read about:- QuickBooks Error 179 appears when banking sessions conflict, blocking account access and disrupting online banking synchronization within the software. 

With this blog, you can resolve the QuickBooks error 2147221164 smoothly. However, if you are unable to rectify this, you need to dial +1(855)-510-6487 and consult with a tech specialist, who will instantly resolve all your queries. 

What Is QuickBooks Error 2147221164?

• QuickBooks Error 2147221164 is a Windows-based runtime issue that usually appears when the software fails to access required system components. This error often interrupts daily accounting tasks and may show up during startup, installation, or while opening a company file. It indicates a conflict between QuickBooks and the operating system environment.

Why Does QuickBooks Error 2147221164 Occur?

• This error commonly occurs when essential Windows files are missing, damaged, or blocked. In some cases, incorrect system permissions or corrupted program components prevent QuickBooks from communicating properly with Windows services, leading to this runtime failure.

Can QuickBooks Error 2147221164 Affect Company Files?

• Yes, this error can directly affect access to company files. When QuickBooks cannot connect with required system elements, it may fail to open files, freeze during processing, or close unexpectedly, which disrupts workflow and risks data accessibility.

Is QuickBooks Error 2147221164 a Windows-Related Issue?

• QuickBooks Error 2147221164 is closely linked to Windows functionality. It often appears when the operating system restricts certain background services or when system files needed by QuickBooks are not responding correctly. This makes the issue more of a compatibility conflict than a simple application bug.

Does This Error Appear During Installation Only?

• No, this error is not limited to installation. It can occur while launching QuickBooks, opening a company file, or performing specific accounting tasks. The timing depends on when QuickBooks attempts to access restricted or unavailable system components.

Can User Permissions Trigger QuickBooks Error 2147221164?

• User permissions can play a major role in triggering this error. If QuickBooks does not have sufficient rights to run system-level operations, the software may fail to execute required processes, resulting in Error 2147221164 during routine use.

Does Antivirus Software Cause QuickBooks Error 2147221164?

• In many cases, security software can interfere with QuickBooks operations. When antivirus programs block background processes or essential services, QuickBooks may not function as expected, which can indirectly trigger this runtime error.

Is QuickBooks Error 2147221164 Related to System Updates?

• Yes, system updates can sometimes contribute to this issue. Incomplete or interrupted Windows updates may leave system files unstable, which affects how QuickBooks interacts with the operating system and increases the chances of encountering this error.

Can This Error Lead to Performance Issues in QuickBooks?

• QuickBooks Error 2147221164 can significantly slow down performance. Users may experience lag, freezing screens, delayed responses, or repeated crashes, all of which impact productivity and make routine accounting tasks difficult.

Does QuickBooks Error 2147221164 Occur in All Versions?

• This error can appear in multiple versions of QuickBooks Desktop, especially when the software runs on incompatible or misconfigured Windows environments. The error message may look the same, but the underlying trigger can vary depending on system setup.

Is QuickBooks Error 2147221164 a Recurring Problem?

• Yes, this error can recur if the root cause remains unresolved. Temporary fixes may clear the message briefly, but the error often returns when QuickBooks again attempts to access restricted system components or damaged files.

Why Should QuickBooks Error 2147221164 Be Addressed Quickly?

• Ignoring QuickBooks Error 2147221164 can lead to repeated interruptions, unstable software behavior, and loss of productivity. Over time, continued errors may increase the risk of file access issues and make daily accounting work more stressful and inefficient.