Error 1646 in QuickBooks is an “installation error” observed during the update of QuickBooks. This technical error can be attributed to - damaged windows components, temp files, incompatible O/S for the new QuickBooks updates, etc. This error comes as an error message “Error 1646: installing quickbooks.msi uninstallation of the update package is not supported.” To cut the roots of QuickBooks error code 1646, and get it resolved once and for all, follow this article.
Abide by the steps below for the effective fixation of this installation error in QuickBooks.
Solution 1: End QuickBooks processes
Solution 2: Uninstall QuickBooks Desktop and rename the folder
Solution 3: Trying QuickBooks install Diagnostic Tool
The current blog showcased multiple solutions to help users get rid of QuickBooks Error 1646. If you have any technical queries in QuickBooks that you want to share with us, just call us at 1-800-761-1787.
