What is the best way to check computers on the network for compliance against Group Policies?
I have tried exporting Backups of our GPOs and converting them to .cab in Microsoft Security Compliance Manager, but that only converts to 2007 and I'm on SCCM 2012, so I'm not sure if it's 100% accurate there. Secondly, there's always some kind of issue, like it not knowing how to translate some configuration items' queries and determine if systems are compliant.
Is there a better way? I'm new to this area. Is it all commercial software solutions to "get things done" in this area? Or is there a simple free approach I'm overlooking?
There is interest in comparing USGCB baselines as well, and I can only work with their GPO backups and convert with Microsoft Security Compliance Manager, which like my own GPO backups, leads to strange issues.
I'm assuming the USGCB SCAP is a better file to use for baseline scanning?