🛠️ Getting QuickBooks Error 1935? Here’s How to Fix It
QuickBooks Error 1935 is a common installation error that typically appears when you're trying to install QuickBooks Desktop or essential components like Microsoft .NET Framework. This error can halt the installation process and prevent QuickBooks from launching properly—especially on freshly configured or updated Windows systems.
This guide breaks down the causes and provides step-by-step solutions to fix Error 1935 quickly and confidently.
⚠️ What Is QuickBooks Error 1935?
You may see one of these messages:
“Error 1935: An error occurred during the installation of assembly component.”
“Error 1935: This setup requires .NET Framework.”
This error indicates that QuickBooks or its dependencies (like .NET Framework) failed to install due to system-level conflicts or restrictions.
🧩 Common Causes
Based on expert insights, the most frequent triggers include:
- 🔧 Microsoft .NET Framework is missing, damaged, or outdated
- 🔒 Antivirus or anti-spyware software blocking installation
- 🔄 Another installation is running in the background
- 🖥️ Windows system files are in use or locked
- 📁 Corrupted registry or system components
🛠️ How to Fix QuickBooks Error 1935
✅ 1. Restart Your Computer
Sometimes, a simple reboot clears background processes that interfere with installation.
- Save your work
- Restart your system
- Retry the QuickBooks installation
🔧 2. Temporarily Disable Antivirus and Anti-Spyware
Security software may block installation components.
- Disable antivirus and anti-spyware temporarily
- Retry installing QuickBooks
- Re-enable protection after installation completes
🔄 3. Install or Repair Microsoft .NET Framework
QuickBooks relies heavily on .NET Framework.
- Go to Control Panel > Programs > Programs and Features
- Locate Microsoft .NET Framework
- Right-click and choose Repair
- If missing, download and install the latest version from Microsoft’s official site
Tip: Use .NET Framework Cleanup Tool if repair fails.
🧰 4. Run QuickBooks Install Diagnostic Tool
This tool automatically detects and fixes installation issues.
- Download and open the QuickBooks Tool Hub
- Go to Installation Issues
- Select QuickBooks Install Diagnostic Tool
- Let it run and restart your computer
🔥 5. Install QuickBooks in Selective Startup Mode
This mode prevents background apps from interfering.
- Press Windows + R, type
msconfig, and press Enter - Go to General > Selective Startup
- Uncheck Load startup items
- Go to Services > Hide all Microsoft services > Disable all
- Restart your computer and install QuickBooks
- After installation, revert to normal startup
🧠 Pro Tips to Prevent Installation Errors
- Always install QuickBooks with admin rights
- Keep Windows and QuickBooks updated
- Avoid installing during system updates or restarts
- Use supported versions of Windows and .NET Framework
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