When error 1920 occurs you will be receiving a message on your computer stating that QuickBooks Database Manager Service failed to start. This error occurs because QuickBooks Database Manager Server is unable to access a hard drive on your desktop in order to create a connection to company files.
Possible causes:
1. A malfunction in the operating system of your computer.
2. Failed installation or uninstallation of QuickBooks.
3. Invalid entries in the registry of your windows.
Hope this post is able to help you in fixing QB error code 1920. If the error still persists, immediately connect with QuickBooks Customer Service at +1-877-693-1117.