This error prevents the users from registering their software, which in turn prevents them from getting full leverage of the impeccable features offered by Intuit. There are several reasons due to which the registration error may manifest itself. Through this article, you shall get accustomed to all the plausible and effective methods for fixing the QuickBooks registration Error. The error can occur due to various reasons, such as incorrect or invalid registration information, issues with the internet connection, or problems with the Intuit server.