The best and easiest way to fix QuickBooks Error 6144 is by uninstalling QB software and reinstalling it. Follow the steps given below to uninstall the software efficiently. Go to the control panel on your system Search for ‘Programs and Features’ Find Quickbooks software in the list of installed programs Select it and click on uninstall on the top bar of the box. Follow the on-screen instructions to uninstall carefully and completely. Hope this basic tip helps you to fix the issue. https://www.quickbak.com/quickbooks-error-6144-82/