Hi there, Wendygld.
Glad to have you in the QuickBooks Community. I found some information to help. The QuickBooks Event log error 4, is commonly attached to Microsoft .NET Framework. With the QuickBooks ToolHub, you have access to multiple tools and applications able to fix many common issues regarding QuickBooks Desktop. For instance with the Install Diagnostic Tool, it will resolve any .NET Framework, MSXML as well as C++ related errors.
- Download the QuickBooks Tool Hub.
- Open the QuickBooks Tool Hub.
- In the tool hub, select Installation Issues.
- Select QuickBooks Install Diagnostic Tool. Let the tool run. It can take up 20 minutes.
When the tool finishes, I recommend restarting your computer and continuing your QuickBooks use as normal. If you happen to experience this error again please let me know at any time by replying below. I'm here to help with any issues you may have. Have a great day!