QuickBooks Error 1935 During Installation? Here’s How to Fix It

Businesses use QuickBooks extensively for financial management and accounting. Error 1935 is one of the errors that users occasionally run into when installing. Usually, system problems that prohibit QuickBooks from installing necessary components, such as the Microsoft.NET Framework, are the cause of this error. This tutorial will assist you in identifying the reasons behind QuickBooks Install Error 1935 and offer detailed fixes.

What is QuickBooks Error 1935?

Error 1935 is an installation error that occurs when QuickBooks fails to install due to system restrictions, missing dependencies, or software conflicts. The error message often appears as:

“Error 1935: An error occurred during the installation of assembly component.”

This can prevent you from successfully installing or updating QuickBooks on your system.

Common Causes of QuickBooks Error 1935

Understanding the root cause of Error 1935 can help in applying the right fix. Here are some common reasons why this error occurs:

1. Missing or Corrupt .NET Framework – For QuickBooks to work correctly, the Microsoft.NET Framework is required. Installation might not go through if it is broken or missing.

2. Antivirus or Firewall Interference – Because it might pose a threat, security software might prevent the installation process.

3. Insufficient User Permissions – QuickBooks might not install properly if the user account on your computer does not have administrative rights.

4. Background Programs Conflicting – QuickBooks installation may be hampered by other background-running programs.

5. Corrupt Windows Registry – QuickBooks may not be able to install required components due to problems with the Windows registry.

6. Windows Updates Pending – Compatibility problems with QuickBooks may arise from an incomplete or out-of-date Windows upgrade.

Now that you know the causes, let's move on to the solutions.

How to Fix QuickBooks Error 1935: Step-by-Step Solutions

Step 1: Restart Your Computer and Try Again

Sometimes, a simple restart can resolve temporary conflicts that may be preventing QuickBooks from installing.

1. Close all open applications.

2. Restart your computer.

3. Try installing QuickBooks again.

If the error persists, proceed to the next step.

Step 2: Update Windows and Install Pending Updates

QuickBooks relies on updated Windows components. Ensure your system is fully updated:

1. Press Windows + I to open Settings.

2. Go to Update & Security > Windows Update.

3. Click Check for Updates.

4. If updates are available, install them and restart your computer.

5. Try installing QuickBooks again.

Step 3: Enable and Repair Microsoft .NET Framework

Since .NET Framework is a key requirement for QuickBooks, ensuring it is enabled and working properly can resolve Error 1935.

To Enable .NET Framework:

1. Press Windows + R, type appwiz.cpl, and press Enter.

2. Click Turn Windows features on or off.

3. Ensure .NET Framework 3.5 and .NET Framework 4.5 or later are checked.

4. Click OK and restart your computer.

5. Try installing QuickBooks again.

To Repair .NET Framework:

1. Download the Microsoft .NET Framework Repair Tool from Microsoft’s official website.

2. Run the tool and follow on-screen instructions.

3. Restart your computer and retry the QuickBooks installation.

Step 4: Temporarily Disable Antivirus and Firewall

Security software might block QuickBooks from installing correctly. Temporarily disable your antivirus and firewall to check if they are causing the issue.

To Disable Windows Firewall:

1. Press Windows + R, type firewall.cpl, and press Enter.

2. Click Turn Windows Defender Firewall on or off.

3. Select Turn off Windows Defender Firewall (for both private and public networks).

4. Try installing QuickBooks again.

Note: If the installation completes successfully, re-enable your firewall after installation.

Step 5: Install QuickBooks as an Administrator

1. Locate the QuickBooks installer file.

2. Right-click on the file and select Run as administrator.

3. Follow the on-screen instructions to install QuickBooks.

4. If the installation completes, restart your computer.

Step 6: Close Background Programs Using Task Manager

Other applications running in the background may interfere with QuickBooks installation. Closing them can help.

1. Press Ctrl + Shift + Esc to open Task Manager.

2. Go to the Processes tab.

3. Look for any applications related to QuickBooks or security software.

4. Right-click each one and select End Task.

5. Try installing QuickBooks again.

Step 7: Run QuickBooks Install Diagnostic Tool

The QuickBooks Install Diagnostic Tool can automatically fix installation-related issues.

1. Download QuickBooks Tool Hub from the official Intuit website.

2. Open QuickBooks Tool Hub and select Installation Issues.

3. Click QuickBooks Install Diagnostic Tool.

4. Let the tool scan and fix issues.

5. Restart your computer and try installing QuickBooks again.

Step 8: Perform a Clean Boot

A clean boot ensures that no other applications interfere with QuickBooks installation.

1. Press Windows + R, type msconfig, and press Enter.

2. Go to the Services tab and check Hide all Microsoft services.

3. Click Disable all.

4. Switch to the Startup tab and click Open Task Manager.

5. Disable all startup items.

6. Restart your computer and install QuickBooks.

Step 9: Modify Registry Settings (Advanced Users Only)

If the Windows registry is corrupted, it may prevent QuickBooks from installing correctly. Modifying the registry can fix this, but it should only be done by advanced users.

1. Press Windows + R, type regedit, and press Enter.

2. Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control

3. Find the RegistrySizeLimit entry.

4. Double-click it and set its value to ffffffff (hexadecimal).

5. Restart your computer and try installing QuickBooks again.

Step 10: Contact QuickBooks Support

If none of the above steps work, you may need to contact QuickBooks Support for professional assistance.

• Visit the official QuickBooks Support website.

• Choose your QuickBooks version and describe the issue.

• Use the Live Chat or Call Support options to get help.

Conclusion

Although QuickBooks Error 1935 can be annoying, you can fix it by following these detailed instructions. Restarting your computer, upgrading Windows, and making sure the.NET Framework is activated are the first steps. Try using the QuickBooks Install Diagnostic Tool, running QuickBooks as an administrator, and turning off security software if the problem continues. A clean boot or registry change can be necessary in more difficult circumstances.

You should be able to install QuickBooks effectively and steer clear of additional installation problems by following this guide.