QuickBooks Error 1935: Causes, Fixes, and Prevention

QuickBooks Error 1935 appears during program installation when Windows cannot install necessary components like the Microsoft .NET Framework. This error typically interrupts the installation process with a message indicating an assembly installation failure. In most cases, it affects users installing QuickBooks or related add-ons on Windows-based systems.

This article outlines the exact meaning of Error 1935, its causes, how to recognize it, and clear, step-by-step solutions. It also covers automated tools and tips to prevent this error in the future.

Watch this quick video to learn the causes and solutions for QuickBooks Error Code 1935.

What is QuickBooks Error “1935”?

QuickBooks Error 1935 is an installation error that occurs when the system fails to install required files or components while setting up QuickBooks Desktop. It usually happens during .NET Framework installation or when other essential system files are blocked, corrupted, or missing.

The error message commonly reads: “Error 1935: An error occurred during the installation of assembly component”
This message often includes a CLSID or HRESULT error code.

Why does QuickBooks Error “1935” occur?

QuickBooks Error 1935 can happen for various reasons. The most common are:

• The Microsoft .NET Framework is either damaged, disabled, or missing.
• Third-party security software or antivirus blocks the installation.
• Windows system files are outdated or corrupted.
• There are registry or permission-related restrictions.
• Incomplete or interrupted Windows updates.

Each of these issues blocks essential processes needed during QuickBooks Desktop installation.

How can you identify QuickBooks Error “1935”?

You can identify Error 1935 if you encounter these symptoms during QuickBooks installation:

• A message box shows “Error 1935” followed by a .NET Framework or assembly error.
• Installation abruptly stops midway.
• Your PC runs slower or becomes unresponsive while installing software.
• QuickBooks installation repeatedly fails on every attempt.
• Other .NET-dependent applications also fail to install or run.

What are the steps to fix QuickBooks Error “1935”?

You can resolve Error 1935 by using one or more of the following solutions depending on the cause. Start with basic troubleshooting and proceed to advanced fixes.

Solution 1: Restart the system and install QuickBooks in Selective Startup mode

Selective Startup mode helps prevent other software from interfering with the installation.

1. Press Windows + R, type msconfig, and press Enter.
2. Go to the General tab → Select Selective startup.
3. Uncheck Load startup items.
4. Go to the Services tab → Check Hide all Microsoft services → Click Disable all.
5. Click OK → Restart your computer.
6. Reinstall QuickBooks Desktop.
7. After installation, return to msconfig and revert to Normal startup.

Solution 2: Reinstall or Repair Microsoft .NET Framework

.NET Framework is critical for QuickBooks. A damaged or missing component causes Error 1935.

1. Press Windows + R, type appwiz.cpl, and press Enter.
2. Click on Turn Windows features on or off.
3. Enable .NET Framework 4.8 and .NET Framework 3.5.
4. If already enabled, uncheck them, reboot, then re-enable and reboot again.
5. Visit Microsoft’s official site to reinstall the latest supported .NET Framework version if needed.
6. Try installing QuickBooks again.

Solution 3: Temporarily disable antivirus or security software

Security software may block installation processes.

• Disable antivirus or firewall temporarily before installing QuickBooks.
• Refer to your antivirus documentation for steps to disable it.
• After installation, re-enable security software.

Solution 4: Run QuickBooks Install Diagnostic Tool

QuickBooks Tool Hub contains the Install Diagnostic Tool to fix .NET Framework and installation errors.

1. Download and install the QuickBooks Tool Hub from Intuit’s official site.
2. Open Tool Hub → Select Installation Issues.
3. Click QuickBooks Install Diagnostic Tool and wait until it completes.
4. Restart your computer and retry QuickBooks installation.

Solution 5: Update Windows OS and drivers

Outdated system components often conflict with .NET-based installations.

1. Open Settings → Update & Security.
2. Click Check for Updates and install all pending updates.
3. Restart your system and retry the installation.

Is there an automated tool to fix QuickBooks Error “1935”?

Yes, the QuickBooks Tool Hub offers an automated way to resolve installation-related errors. Within this tool, the Install Diagnostic Tool checks and repairs common issues linked to .NET Framework, C++, and MSXML components. It significantly reduces manual troubleshooting and is free to download from the official Intuit website.

How can I prevent QuickBooks Error “1935” in the future?

To avoid facing Error 1935 again:

• Keep Microsoft .NET Framework updated.
• Always update your Windows OS and system drivers.
• Use a trusted antivirus that allows safe installations.
• Avoid interrupting installations midway.
• Create restore points before installing or updating major software.

What if QuickBooks Error “1935” is not fixed after troubleshooting?

If none of the listed methods solve the error, the problem may involve deeper system file corruption, registry-level issues, or third-party conflicts. At this point, professional help is recommended to avoid data loss or further disruptions.

How can our experts assist you in resolving QuickBooks Error “1935”?

If you are still facing Error 1935, our experts at Error Code Experts can help you fix it quickly and safely. Our team uses advanced diagnostic tools and proven methods to resolve installation problems without affecting your data.

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