QB error 15225 can be categorized as error caused while downloading the software or updating the version of the QuickBooks software. The upgrade process may not be carried in right way that results in the cause of such critical errors that restrict access to software hampering the work flow of your business. Report the problem immediately to the Intuit support center through feasible mode. Also save full list of QuickBooks Error code here .
The reason for the cause of this error may be due to an incorrect configuration of Microsoft Internet Explorer (IE). To secure the computer and its contents, QuickBooks attempts to verify the digital signature on all files that are downloaded through the program. If QuickBooks software is unable to verify the digital signature of a file that you are trying to download, QB error 15225 occurs.
If you need any additional information on digital signatures, please see Description of Digital Certificates (Q195724) on the Microsoft Help and Support Web site.
Troubleshooting of QuickBooks Error Code 15225
If the above solution does not resolve the QuickBooks issue or answer your question, you can read discussions and post messages and questions relating to your QB issue on the Intuit QuickBooks Community site introduced by Intuit or you can connect with the QuickBooks technical support for guidance and error fixation.
There are a number of third party file repair companies that can fix this issue instantly.