Troubleshooting internet connection issues, firewall settings, and having mulitple instances of QuickBooks installed on the computer.

It is sometimes necessary to uninstall and reinstall all other Intuit programs in the QuickBooks installation folder (as well as QuickBooks),  if QuickBooks does not function correctly after a reinstallation. This is referred to as a clean install.

Steps to resolve error 6189 by setting appropriate access permissions for the folder that contains your company data file.

Network errors such as error -6000, -80: "An error occurred when QuickBooks tried to access the company file," can occur when restoring a QuickBooks company file from a backup, updating a company file, or attempting to open a company file.

Steps to resolve error 1303 "Error 1303: Installer has insufficient privileges to access this directory. [path to directory]."

This article lists situations that indicate a damaged company file, provides troubleshooting information, and gives steps to resolve common cases.

Steps for resolving error -6190, -83 error, which can happen when more than one computer is set to host the same company file.

Provides steps to resolve error -6190, -82, which may occur when trying to open a company file on a Windows server.