QuickBooks Error Code 1601, 1603, and 1642 may encounter due to a disrupted Microsoft Windows Installer or a damaged QuickBooks Desktop installation. This article contains the primary reasons and viable solutions for fixing QuickBooks error code 1601, 1603 and 1642. There are distinct issues that you might encounter while installing the QuickBooks Desktop. These include:
Error 1601: Windows installer not accessible.
Error 1603: Issue while installing Microsoft .Net Framework
Error 1642: Encountered while installing Microsoft .Net Framework for QuickBooks.