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How do I resolve an error HRESULT = 429 (1AD) when installing AvaTax for QuickBooks Desktop?

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Overview

You are trying to install Avalara AvaTax for QuickBooks but in the middle of the installation process an error is appearing, and it cannot complete:

HRESULT = 429 (1ad)
Class not registered (Exception from HRESULT: 0x80040154
REGDB_E_CLASSNOTREG))

Environment

QuickBooks

Resolution

  • This error indicates your QuickBooks installation has an issue, where a particular file is not registered or is of a different version than expected, refer to Intuit support documentation to resolve issue.
  • Install the Avalara software once you have completed updates to resolve the QuickBooks issue