inspect.inf access is denied

CIS reports that updates are available when I select check for updates. The update program starts, gets to about 15% and stops on inspect.inf with an access denied error. 64bit version 4.1 installed on server 2008. Domain admin is logged in with full control of all files. Help much appreciated.

First thing to notice is that CIS was not developed for Server 2008. Even though the kernel is the same as of Win 7 I assume there are differences.

It stalls at the installation of the inspect driver. Not sure if this will work but you could try updating in Windows Safe Mode with networking.