To fix QuickBooks unrecoverable error code, you are supposed to follow and apply a few important steps and instructions  You must apply the steps like you should download and install the QuickBooks Tools Hub.  Now you should run Quick fix my program.  Now, you must prevent QBFC monitor service from re-starting on the workstation. Now, just by applying the steps, you can simply find out the ways to fix it. You can follow and apply a few important steps and instructions to apply it. Go through the steps to know more.