How can you fix Quickbooks won't open error?
There are some simple and easy methods to resolve the error. Here are a few:
Method: 1 Restart the System
Restart or reboot your computer before using any other method to resolve the error
After restarting the system, open the company file to see if the error still exists.
Use the Quickbooks Install Diagnostic Tool
To fix the error when Quickbooks does not open, try the Quickbooks Install Diagnostic Tool.
Method: 2 Download and install the QB Diagnostic Install tool from Intuit's official website.