Getting error while inplace upgrade from windows server 2008 r2 to windows server 2012 r2 standard dell poweredge r720

We have locally copied ISO file of 2012 operating system and trying to upgrade the server from 2008 to 2012. while upgrading we are getting below error on the servers. the server is physical and make and model is Dell power edge R720

Windows cannot install required files. Make sure all files required for installation are available, and restart the installation. Error code: 0x80070522

We have followed numerous links for this error code however could not find any relevant solution. quick help and response is much appreciatedenter image description here