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Step-By-Step Guide to Fix QuickBooks Error 1618

QuickBooks Error 1618

What is QuickBooks Error 1618?

QuickBooks Error 1618 is an installation error that typically occurs when a user attempts to update QuickBooks or install QuickBooks Desktop. The error message often reads, “There was a problem installing Microsoft Runtime Library (Error 1618).” This error is closely tied to issues with Microsoft Runtime Libraries and the installation processes of Windows applications.

Causes of QuickBooks Error 1618

Understanding the causes behind QuickBooks Error 1618 is essential for effective troubleshooting. Here are some common triggers:

  • Multiple Instances of Installers: Error 1618 can occur if multiple installation routines run simultaneously, especially involving Microsoft components.
  • Corrupted Microsoft Installer: A damaged or corrupted Microsoft Installer can lead to this error, as it fails to handle new installation requests properly.
  • Improper Installation: Previous software installations that must be installed properly or entirely can interfere with new installations.
  • Registry Errors: Errors within the Windows registry related to QuickBooks can precipitate this issue.
  • System Conflicts: Other system components or software sometimes conflict with QuickBooks’ installation process.

Step-By-Step Guide To Fix QuickBooks Error 1618

Fixing Error 1618 involves a series of steps to address the error’s different causes. Here’s how you can resolve the issue:

Step 1: Close Conflicting Programs

  1. Open Task Manager: Press Ctrl + Shift + Esc to open Task Manager.
  2. End Installation Tasks: Look for any processes named MSIEXEC.EXE or other instances that suggest a program installation. Select these processes and click ‘End Task.”

Step 2: Use the QuickBooks Install Diagnostic Tool

  1. Download and Install the Tool: Download the QuickBooks Install Diagnostic Tool from Intuit’s official website.
  2. Run the Tool: Once installed, run the tool. It will automatically scan and fix issues related to Microsoft components used by QuickBooks.

Step 3: Update Microsoft Installer

  1. Visit Microsoft Download Center: Go to the official Microsoft Download Center.
  2. Download Installer: Download the latest version of Microsoft Installer and follow the prompts to install it properly.

Step 4: Manually Resolve MSIEXEC.EXE Instances

  1. Open Command Prompt: Press Windows Key + R, type cmd, and hit enter.
  2. Enter Commands: Type the following commands and press Enter after each:
  3. bashCopy code
  4. taskkill /f /im msiexec.exe
  5. msiexec /unreg
  6. msiexec /regserver
  7. These commands will end ongoing instances, unregister, and re-register the installer service.

Step 5: Repair Registry Entries Related to QuickBooks

  1. Back-Up the Registry: Before making any changes, back up your registry.
  2. Edit the Registry: Press Windows Key + R, type regedit, and press Enter. Navigate to the QuickBooks-related keys and modify as needed. (Note: This step is risky and should be handled by a professional or someone familiar with the Windows registry.)

Step 6: Perform a Clean Installation of QuickBooks

  1. Uninstall QuickBooks: Go to ‘Control Panel > Programs and Features,” select QuickBooks, and click ‘Uninstall.”
  2. Reinstall QuickBooks: Download a fresh installation file from the official QuickBooks website and follow the instructions to reinstall.

Step 7: Check for Windows Updates

  1. Update Windows: Go to ‘Settings > Update & Security > Windows Update’ and click ‘Check for updates.’
  2. Install Updates: Install any available updates to ensure your system is up to date, which could resolve any compatibility issues.


QuickBooks Error 1618 can be a stumbling block for many users, but it can be resolved effectively with the right approach. Following the step-by-step guide outlined above, you can ensure your QuickBooks installation or update is completed without further hitches. Always keep your system and software updated to minimize conflicts and maximize performance.

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