QuickBooks error 80029c4a indicates that the dynamic link library file, which is also known as DLL is corrupted. You might not be able to find extra files because of which a connection issue occurs between the system and the QB desktop.
This error can occur if your antivirus has marked QuickBooks as a threat to your desktop/ laptop. To resolve this error, you can check your antivirus to see if QB has been marked as a virus or spam file.
You can repair it with the help of settings in your laptop and if this doesn’t solve your problem then you can uninstall and reinstall QuickBooks and start on a clean slate.
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