During installation, unplug your Ethernet cable. This prevents the installer from automatically updating to a version you don't want.

Type it exactly as it appears on your sticker.

Uninstall any newer version of QuickBooks first. Use the QuickBooks Clean Install Tool to scrub the registry.

If QuickBooks is currently running on a computer, go to F2 (or Ctrl + 1 ) on your keyboard. A window called "Product Information" will pop up displaying your License Key and Product Number.

This comprehensive article will explain everything you need to know about QuickBooks Desktop Pro 2019—legally, safely, and effectively. Released in the fall of 2018, QuickBooks Desktop Pro 2019 was the 12th iteration in Intuit’s desktop lineup. It was praised for its stability and advanced features that bridged the gap between basic accounting and enterprise resource planning.