You can get rid of QuickBooks Error Code 80029c4a by updating the Avast Virus definition. Given below are the steps to follow.
Conduct an Avast Virus definition and update all the programs.
Right-click on the icon of ‘Avast.’
Choose the option of ‘Update.’
Tap on the ‘Program’ tab. Now adhere to the prompts for upgrading the Avast program.
Perform the above steps 1 to 3 times. Then, choose the ‘Engine & Virus’ option.