Printer not activated Error Code -20 is just one of the most common error message encountered by QuickBooks users. This error generally takes place when a user try to install or upgrade to a newer Windows version. Usually, the major cause of this issue is the deleted KEY_CURRENT_CONFIG\Software key.
Because of this error, users are not able to publish or send the invoices and pay slips which leads to the further inconvenience for business owners. This is a common error that may cause by lots of other applications besides QuickBooks, but its significance on QuickBooks is greater than any other software.
Read More: QuickBooks Error code 20 | QuickBooks Database Server Manager | QuickBooks Desktop 2020