Content explains how to determine the last version of QuickBooks used to open or backup the company file.

Velocity Inventory (VI) is available for use as a trial, or by purchasing a subscription. If VI trials lead to discontinued usage or if active subscribers decide that VI is not the best solution, VI must be removed.

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.

Decribes how to update QuickBooks software with periodically released patches. Covers both in-product and manual update methods.  

Information about installing QuickBooks on additional computers. The number of users you purchase licenses for determines the number of computers on which QuickBooks has been installed.

This article contains detailed instructions on how to download and install the QuickBooks Online Backup program.

How to change, cancel, or upgrade a QuickBooks product order.

Instructions for stepping through the QuickBooks installation wizard when installing from CD.

Steps for resolving error 1311 by copying the installation CD to your desktop and then installing QuickBooks to your hard drive.