Troubleshooting methods to get rid of QuickBooks update error

QuickBooks timely releases various updates for users to utilize the software in an efficient manner. The same way, many users get trapped in an error as QuickBooks update error while downloading the latest version available to update the current one. Thus, with the occurrence of error, the user shall probably not be able to upgrade QuickBooks any further till the time, issue is not resolved.
It is not always sure that only one reason might be the actual cause of the error, but it can certainly be one or more causes for it to occur, here are some amongst them:
Due to firewalls or internet security settings
Due to poor or unstable internet connectivity
Due to incorrect settings of your default browser
Due to any third-party application interfering the process