In some cases there was an issue installing QuickBooks and an error occurred. QuickBooks PDF Converter Activation Error 41 is usually seen when QB uses an older version of the print driver activation code. QuickBooks error 41 is a very common issue that occurs with the PDF converter integration if installed right after an update. Issue ProFile users encounter a "printer not activated" error message and related reference number. If you wish to skip these steps because they are too time consuming or you are not a computer expert, see our easier solution below.