Is QuickBooks showing failed update with an error code 15271? Well, if that is case, then you simply need to understand the QuickBooks error 15271 in detail and try getting rid of it. The error code might indicate that the file isn’t validated for some reason which can be a missing file or component. The error needs to rectified immediately, as it hinders the smooth installation and update process. To know the error code 15271 better, and find out what can fix it, make sure to read this post till the end.