There are several solutions which can be picked from. And if you are unable to make the decision; we have a few common solutions for QuickBooks Error Message 80029c4a. Just pick one of them and your problem will be sorted.
Try to update your Quickbooks Desktop completely. Do not leave even a single pending update.
Sometimes restarting your computer can also work wonderfully.
Then you can also try to run the “reboot.bat” file on your system.
Repair your Quickbooks Desktop or try reinstalling it.
Re-launch your Quickbooks Desktop on your device.
You can also try updating the security software to get better protection.