- Unpack retail untouched installer. (Do NOT use another type of installer!) - Disable internet and install retail product with the below info: Licence: 5290-7452-1183-900 Product Number: 985-058 - After installation if opened, close it compeltely. - Replace both patched files in: C:\Program Files (x86)\Intuit\QuickBooks Enterprise Solutions 21.0 - Do not apply auto updates. If you do so it will revert back to unlicensed mode when auto update is used!