QuickBooks Point of Sale installation as like the installation of other versions of QuickBooks Desktop encounters errors, some of which clearly states the reason of the failure and even suggests a solution whereas some errors like QuickBooks POS installation fatal error could frustrate a user. This happens as only a little information is displayed to the user once encountered the fatal error. There are few reasons responsible for triggering fatal error while installing QuickBooks POS and once the exact cause is known the error can be resolved easily. After profoundly analyzing the error, in this article, we have listed all the possible solutions along with the reasons so that you can easily figure out the cause. Follow the complete article for detailed information.