Try this post to solving it:
"Basically SharePoint is trying to get information about this service account and access is denied. This is because you are running the Windows session and Products and Configuration Wizard as a local user that does not have access to the AD OU to verify the SPFarm domain account. Log out, Log in as SPSetup (or any domain user if you don’t have one) and re-launch the SharePoint Products and Configuration Wizard. Specify the SPFarm account to connect to the SQL Database. Dont forget, you might have to log in to SQL Management Studio and remove the partially created farm database SharePoint_Config or use a different name the second time."
http://eschrader.com/2013/03/27/sharepoint-2013-common-installation-issues/